Common use of Retention of Personal Data Clause in Contracts

Retention of Personal Data. The Relevant TriMas Companies will retain the Grantee’s personal data for the duration of the Plan and for a further period of eight years after the Grantee ceases to be a member of the Plan. The Relevant TriMas Companies will retain the Grantee’s personal data for longer than the period specified above if required by law, to defend or exercise legal rights (such as defending legal claims) or to comply with regulatory obligations. The Grantee’s Rights In order to control the use of their personal data, each Grantee has the following controls over their personal data: • Each Grantee may request access to or copies of the personal data that the Relevant TriMas Companies hold about them by contacting their local human resources representative; • If the Grantee believes that any information the Relevant TriMas Companies hold about them is incorrect or incomplete, the Grantee should contact their local human resources representative as soon as possible. The Relevant TriMas Companies will take steps to seek to correct or update any information if they are satisfied that the information they hold is inaccurate. In certain circumstances, the Grantee may also request that the Relevant TriMas Companies restrict their processing; • Each grantee may request that their personal data be deleted where it is no longer necessary for the purposes for which it is being processed and provided there is no other lawful basis for which the Relevant TriMas Companies may continue to process such personal data. The Grantee can exercise this right by contacting their local human resources representative; • If the Relevant TriMas Companies are processing the Grantee’s personal data to meet their legitimate interests (as set out above), the Grantee may object to the processing of their personal information by the Relevant TriMas Companies. If the Relevant TriMas Companies are unable to demonstrate their legitimate grounds for that processing, they will no longer process the Grantee’s personal information for those purposes; • Where the Grantee has provided the Relevant TriMas Companies with their personal data that the Relevant TriMas Companies process using automated means, the Grantee may be entitled to a copy of that personal data in a structured, commonly-used and machine readable format. The Grantee can exercise this right by contacting their local human resources representative. The Grantee should contact their local human resources representative in relation to any concerns about how their personal data is processed and the Relevant TriMas Companies will try to resolve the Grantee’s concerns. However, if the Grantee considers that the Relevant TriMas Companies is in breach of its obligations under data protection laws, the Grantee may lodge a complaint with the Information Commissioner’s Office in the United Kingdom (such as by accessing xxxxx://xxx.xxx.xx/concerns/). Loss of Office or Employment. A new Section II.B.17 is added to the Agreement to read as follows: “In no circumstances shall Grantee, on ceasing to hold the office or employment by virtue of which he has been granted this Award, be entitled to any compensation for any loss of any right or benefit or prospective right or benefit under this Award or the Plan which he might otherwise have enjoyed whether such compensation is claimed by way of damages for wrongful dismissal or other breach of contract or by way of compensation for loss of office or otherwise.” APPENDIX C TO RESTRICTED STOCK UNITS AGREEMENT CALIFORNIA ADDENDUM Additional Terms and Conditions for Equity Grants Under the TriMas Corporation 2017 Equity and Incentive Compensation Plan, as amended Terms and Conditions This Addendum includes additional terms and conditions that govern the Restricted Stock Units granted to you under the TriMas Corporation 2017 Equity and Incentive Compensation Plan (referred to as the “Plan”) if you are employed and/or reside in California or if the Company determines that the application of such terms and conditions is necessary or advisable in order to comply with applicable law. Certain capitalized terms used but not defined in this Addendum have the meanings set forth in the Plan and/or your award agreement (the “Agreement”) that relates to your award. By accepting your award, you agree to be bound by the terms and conditions contained in the paragraphs below in addition to the terms of the Plan, the Agreement, and the terms of any other document that may apply to you and your award.

Retention of Personal Data. The Relevant TriMas Companies will retain the Grantee’s personal data for the duration of the Plan and for a further period of eight years after the Grantee ceases to be a member of the Plan. The Relevant TriMas Companies will retain the Grantee’s personal data for longer than the period specified above if required by law, to defend or exercise legal rights (such as defending legal claims) or to comply with regulatory obligations. The Grantee’s Rights In order to control the use of their personal data, each Grantee has the following controls over their personal data: • Each Grantee may request access to or copies of the personal data that the Relevant TriMas Companies hold about them by contacting their local human resources representative; • If the Grantee believes that any information the Relevant TriMas Companies hold about them is incorrect or incomplete, the Grantee should contact their local human resources representative as soon as possible. The Relevant TriMas Companies will take steps to seek to correct or update any information if they are satisfied that the information they hold is inaccurate. In certain circumstances, the Grantee may also request that the Relevant TriMas Companies restrict their processing; • Each grantee may request that their personal data be deleted where it is no longer necessary for the purposes for which it is being processed and provided there is no other lawful basis for which the Relevant TriMas Companies may continue to process such personal data. The Grantee can exercise this right by contacting their local human resources representative; • If the Relevant TriMas Companies are processing the Grantee’s personal data to meet their legitimate interests (as set out above), the Grantee may object to the processing of their personal information by the Relevant TriMas Companies. If the Relevant TriMas Companies are unable to demonstrate their legitimate grounds for that processing, they will no longer process the Grantee’s personal information for those purposes; • Where the Grantee has provided the Relevant TriMas Companies with their personal data that the Relevant TriMas Companies process using automated means, the Grantee may be entitled to a copy of that personal data in a structured, commonly-used and machine readable format. The Grantee can exercise this right by contacting their local human resources representative. The Grantee should contact their local human resources representative in relation to any concerns about how their personal data is processed and the Relevant TriMas Companies will try to resolve the Grantee’s concerns. However, if the Grantee considers that the Relevant TriMas Companies is in breach of its obligations under data protection laws, the Grantee may lodge a complaint with the Information Commissioner’s Office in the United Kingdom (such as by accessing xxxxx://xxx.xxx.xx/concerns/). .” Loss of Office or Employment. A new Section II.B.17 II.B.18 is added to the Agreement to read as follows: “In no circumstances shall Grantee, on ceasing to hold the office or employment by virtue of which he has been granted this Award, be entitled to any compensation for any loss of any right or benefit or prospective right or benefit under this Award or the Plan which he might otherwise have enjoyed whether such compensation is claimed by way of damages for wrongful dismissal or other breach of contract or by way of compensation for loss of office or otherwise.” APPENDIX C D TO RESTRICTED PERFORMANCE STOCK UNITS UNIT AGREEMENT CALIFORNIA ADDENDUM Additional Terms and Conditions for Equity Grants Under the TriMas Corporation 2017 Equity and Incentive Compensation Plan, as amended Terms and Conditions This Addendum includes additional terms and conditions that govern the performance-based Restricted Stock Units (“PSUs”) granted to you under the TriMas Corporation 2017 Equity and Incentive Compensation Plan (referred to as the “Plan”) if you are employed and/or reside in California or if the Company determines that the application of such terms and conditions is necessary or advisable in order to comply with applicable law. Certain capitalized terms used but not defined in this Addendum have the meanings set forth in the Plan and/or your award agreement (the “Agreement”) that relates to your award. By accepting your award, you agree to be bound by the terms and conditions contained in the paragraphs below in addition to the terms of the Plan, the Agreement, and the terms of any other document that may apply to you and your award.

Retention of Personal Data. The Relevant TriMas Companies will retain the Grantee’s personal data for the duration of the Plan and for a further period of eight years after the Grantee ceases to be a member of the Plan. The Relevant TriMas Companies will retain the Grantee’s personal data for longer than the period specified above if required by law, to defend or exercise legal rights (such as defending legal claims) or to comply with regulatory obligations. The Grantee’s Rights In order to control the use of their personal data, each Grantee has the following controls over their personal data: • Each Grantee may request access to or copies of the personal data that the Relevant TriMas Companies hold about them by contacting their local human resources representative; • If the Grantee believes that any information the Relevant TriMas Companies hold about them is incorrect or incomplete, the Grantee should contact their local human resources representative as soon as possible. The Relevant TriMas Companies will take steps to seek to correct or update any information if they are satisfied that the information they hold holds is inaccurate. In certain circumstances, the Grantee may also request that the Relevant TriMas Companies restrict their processing; • Each grantee may request that their personal data be deleted where it is no longer necessary for the purposes for which it is being processed and provided there is no other lawful basis for which the Relevant TriMas Companies may continue to process such personal data. The Grantee can exercise this right by contacting their local human resources representative; • If the Relevant TriMas Companies are processing the Grantee’s personal data to meet their legitimate interests (as set out above), the Grantee may object to the processing of their personal information by the Relevant TriMas Companies. If the Relevant TriMas Companies are unable to demonstrate their legitimate grounds for that processing, they will no longer process the Grantee’s personal information for those purposes; • Where the Grantee has provided the Relevant TriMas Companies with their personal data that the Relevant TriMas Companies process using automated means, the Grantee may be entitled to a copy of that personal data in a structured, commonly-used and machine readable format. The Grantee can exercise this right by contacting their local human resources representative. The Grantee should contact their local human resources representative in relation to any concerns about how their personal data is processed and the Relevant TriMas Companies will try to resolve the Grantee’s concerns. However, if the Grantee considers that the Relevant TriMas Companies is in breach of its obligations under data protection laws, the Grantee may lodge a complaint with the Information Commissioner’s Office in the United Kingdom (such as by accessing xxxxx://xxx.xxx.xx/concerns/). .” Loss of Office or Employment. A new Section II.B.17 is added to the Agreement to read as follows: “In no circumstances shall Grantee, on ceasing to hold the office or employment by virtue of which he has been granted this Award, be entitled to any compensation for any loss of any right or benefit or prospective right or benefit under this Award or the Plan which he might otherwise have enjoyed whether such compensation is claimed by way of damages for wrongful dismissal or other breach of contract or by way of compensation for loss of office or otherwise.” APPENDIX C TO RESTRICTED STOCK UNITS AGREEMENT CALIFORNIA ADDENDUM Additional Terms and Conditions for Equity Grants Under the TriMas Corporation 2017 Equity and Incentive Compensation Plan, as amended Terms and Conditions This Addendum includes additional terms and conditions that govern the Restricted Stock Units granted to you under the TriMas Corporation 2017 Equity and Incentive Compensation Plan (referred to as the “Plan”) if you Notifications There are employed and/or reside in California or if the Company determines that the application of such terms and conditions is necessary or advisable in order to comply with applicable law. Certain capitalized terms used but not defined in this Addendum have the meanings set forth in the Plan and/or your award agreement (the “Agreement”) that relates to your award. By accepting your award, you agree to be bound by the terms and conditions contained in the paragraphs below in addition to the terms of the Plan, the Agreement, and the terms of any other document that may apply to you and your awardno country-specific notifications.

Retention of Personal Data. The Relevant TriMas Companies will retain the Grantee’s personal data for the duration of the Plan and for a further period of eight years after the Grantee ceases to be a member of the Plan. The Relevant TriMas Companies will retain the Grantee’s personal data for longer than the period specified above if required by law, to defend or exercise legal rights (such as defending legal claims) or to comply with regulatory obligations. The Grantee’s Rights In order to control the use of their personal data, each Grantee has the following controls over their personal data: • Each Grantee may request access to or copies of the personal data that the Relevant TriMas Companies hold about them by contacting their local human resources representative; • If the Grantee believes that any information the Relevant TriMas Companies hold about them is incorrect or incomplete, the Grantee should contact their local human resources representative as soon as possible. The Relevant TriMas Companies will take steps to seek to correct or update any information if they are satisfied that the information they hold is inaccurate. In certain circumstances, the Grantee may also request that the Relevant TriMas Companies restrict their processing; • Each grantee may request that their personal data be deleted where it is no longer necessary for the purposes for which it is being processed and provided there is no other lawful basis for which the Relevant TriMas Companies may continue to process such personal data. The Grantee can exercise this right by contacting their local human resources representative; • If the Relevant TriMas Companies are processing the Grantee’s personal data to meet their legitimate interests (as set out above), the Grantee may object to the processing of their personal information by the Relevant TriMas Companies. If the Relevant TriMas Companies are unable to demonstrate their legitimate grounds for that processing, they will no longer process the Grantee’s personal information for those purposes; • Where the Grantee has provided the Relevant TriMas Companies with their personal data that the Relevant TriMas Companies process using automated means, the Grantee may be entitled to a copy of that personal data in a structured, commonly-used and machine readable format. The Grantee can exercise this right by contacting their local human resources representative. The Grantee should contact their local human resources representative in relation to any concerns about how their personal data is processed and the Relevant TriMas Companies will try to resolve the Grantee’s concerns. However, if the Grantee considers that the Relevant TriMas Companies is in breach of its obligations under data protection laws, the Grantee may lodge a complaint with the Information Commissioner’s Office in the United Kingdom (such as by accessing xxxxx://xxx.xxx.xx/concerns/). .” Loss of Office or Employment. A new Section II.B.17 II.B.19 is added to the Agreement to read as follows: “In no circumstances shall Grantee, on ceasing to hold the office or employment by virtue of which he has been granted this Award, be entitled to any compensation for any loss of any right or benefit or prospective right or benefit under this Award or the Plan which he might otherwise have enjoyed whether such compensation is claimed by way of damages for wrongful dismissal or other breach of contract or by way of compensation for loss of office or otherwise.” APPENDIX C D TO RESTRICTED PERFORMANCE STOCK UNITS UNIT AGREEMENT CALIFORNIA ADDENDUM Additional Terms and Conditions for Equity Grants Under the TriMas Corporation 2017 Equity and Incentive Compensation Plan, as amended Terms and Conditions This Addendum includes additional terms and conditions that govern the performance-based Restricted Stock Units (“PSUs”) granted to you under the TriMas Corporation 2017 Equity and Incentive Compensation Plan (referred to as the “Plan”) if you are employed and/or reside in California or if the Company determines that the application of such terms and conditions is necessary or advisable in order to comply with applicable law. Certain capitalized terms used but not defined in this Addendum have the meanings set forth in the Plan and/or your award agreement (the “Agreement”) that relates to your award. By accepting your award, you agree to be bound by the terms and conditions contained in the paragraphs below in addition to the terms of the Plan, the Agreement, and the terms of any other document that may apply to you and your award.

Retention of Personal Data. The Relevant TriMas Companies will retain the Grantee’s personal data for the duration of the Plan and for a further period of eight years after the Grantee ceases to be a member of the Plan. The Relevant TriMas Companies will retain the Grantee’s personal data for longer than the period specified above if required by law, to defend or exercise legal rights (such as defending legal claims) or to comply with regulatory obligations. The Grantee’s Rights In order to control the use of their personal data, each Grantee has the following controls over their personal data: • Each Grantee may request access to or copies of the personal data that the Relevant TriMas Companies hold about them by contacting their local human resources representative; • If the Grantee believes that any information the Relevant TriMas Companies hold about them is incorrect or incomplete, the Grantee should contact their local human resources representative as soon as possible. The Relevant TriMas Companies will take steps to seek to correct or update any information if they are satisfied that the information they hold is inaccurate. In certain circumstances, the Grantee may also request that the Relevant TriMas Companies restrict their processing; x • Each grantee may request that their personal data be deleted where it is no longer necessary for the purposes for which it is being processed and provided there is no other lawful basis for which the Relevant TriMas Companies may continue to process such personal data. The Grantee can exercise this right by contacting their local human resources representative; • If the Relevant TriMas Companies are processing the Grantee’s personal data to meet their legitimate interests (as set out above), the Grantee may object to the processing of their personal information by the Relevant TriMas Companies. If the Relevant TriMas Companies are unable to demonstrate their legitimate grounds for that processing, they will no longer process the Grantee’s personal information for those purposes; • Where the Grantee has provided the Relevant TriMas Companies with their personal data that the Relevant TriMas Companies process using automated means, the Grantee may be entitled to a copy of that personal data in a structured, commonly-used and machine readable format. The Grantee can exercise this right by contacting their local human resources representative. The Grantee should contact their local human resources representative in relation to any concerns about how their personal data is processed and the Relevant TriMas Companies will try to resolve the Grantee’s concerns. However, if the Grantee considers that the Relevant TriMas Companies is in breach of its obligations under data protection laws, the Grantee may lodge a complaint with the Information Commissioner’s Office in the United Kingdom (such as by accessing xxxxx://xxx.xxx.xx/concerns/). Loss of Office or Employment. A new Section II.B.17 is added to the Agreement to read as follows: “In no circumstances shall Grantee, on ceasing to hold the office or employment by virtue of which he has been granted this Award, be entitled to any compensation for any loss of any right or benefit or prospective right or benefit under this Award or the Plan which he might otherwise have enjoyed whether such compensation is claimed by way of damages for wrongful dismissal or other breach of contract or by way of compensation for loss of office or otherwise.” APPENDIX C TO RESTRICTED STOCK UNITS AGREEMENT CALIFORNIA ADDENDUM Additional Terms and Conditions for Equity Grants Under the TriMas Corporation 2017 2023 Equity and Incentive Compensation Plan, as amended Terms and Conditions This Addendum includes additional terms and conditions that govern the Restricted Stock Units granted to you under the TriMas Corporation 2017 2023 Equity and Incentive Compensation Plan (referred to as the “Plan”) if you are employed and/or reside in California or if the Company determines that the application of such terms and conditions is necessary or advisable in order to comply with applicable law. Certain capitalized terms used but not defined in this Addendum have the meanings set forth in the Plan and/or your award agreement (the “Agreement”) that relates to your award. By accepting your award, you agree to be bound by the terms and conditions contained in the paragraphs below in addition to the terms of the Plan, the Agreement, and the terms of any other document that may apply to you and your award.

Retention of Personal Data. The Relevant TriMas Companies will retain the Grantee’s personal data for the duration of the Plan and for a further period of eight years after the Grantee ceases to be a member of the Plan. The Relevant TriMas Companies will retain the Grantee’s personal data for longer than the period specified above if required by law, to defend or exercise legal rights (such as defending legal claims) or to comply with regulatory obligations. The Grantee’s Rights In order to control the use of their personal data, each Grantee has the following controls over their personal data: • Each Grantee may request access to or copies of the personal data that the Relevant TriMas Companies hold about them by contacting their local human resources representative; • If the Grantee believes that any information the Relevant TriMas Companies hold about them is incorrect or incomplete, the Grantee should contact their local human resources representative as soon as possible. The Relevant TriMas Companies will take steps to seek to correct or update any information if they are satisfied that the information they hold holds is inaccurate. In certain circumstances, the Grantee may also request that the Relevant TriMas Companies restrict their processing; • Each grantee may request that their personal data be deleted where it is no longer necessary for the purposes for which it is being processed and provided there is no other lawful basis for which the Relevant TriMas Companies may continue to process such personal data. The Grantee can exercise this right by contacting their local human resources representative; • If the Relevant TriMas Companies are processing the Grantee’s personal data to meet their legitimate interests (as set out above), the Grantee may object to the processing of their personal information by the Relevant TriMas Companies. If the Relevant TriMas Companies are unable to demonstrate their legitimate grounds for that processing, they will no longer process the Grantee’s personal information for those purposes; • Where the Grantee has provided the Relevant TriMas Companies with their personal data that the Relevant TriMas Companies process using automated means, the Grantee may be entitled to a copy of that personal data in a structured, commonly-used and machine readable format. The Grantee can exercise this right by contacting their local human resources representative. The Grantee should contact their local human resources representative in relation to any concerns about how their personal data is processed and the Relevant TriMas Companies will try to resolve the Grantee’s concerns. However, if the Grantee considers that the Relevant TriMas Companies is in breach of its obligations under data protection laws, the Grantee may lodge a complaint with the Information Commissioner’s Office in the United Kingdom (such as by accessing xxxxx://xxx.xxx.xx/concerns/). .” Loss of Office or Employment. A new Section II.B.17 II.B.16 is added to the Agreement to read as follows: “In no circumstances shall Grantee, on ceasing to hold the office or employment by virtue of which he has been granted this Award, be entitled to any compensation for any loss of any right or benefit or prospective right or benefit under this Award or the Plan which he might otherwise have enjoyed whether such compensation is claimed by way of damages for wrongful dismissal or other breach of contract or by way of compensation for loss of office or otherwise.” APPENDIX C TO RESTRICTED STOCK UNITS AGREEMENT CALIFORNIA ADDENDUM Additional Terms and Conditions for Equity Grants Under the TriMas Corporation 2017 Equity and Incentive Compensation Plan, as amended Terms and Conditions This Addendum includes additional terms and conditions that govern the Restricted Stock Units granted to you under the TriMas Corporation 2017 Equity and Incentive Compensation Plan (referred to as the “Plan”) if you are employed and/or reside in California or if the Company determines that the application of such terms and conditions is necessary or advisable in order to comply with applicable law. Certain capitalized terms used but not defined in this Addendum have the meanings set forth in the Plan and/or your award agreement (the “Agreement”) that relates to your award. By accepting your award, you agree to be bound by the terms and conditions contained in the paragraphs below in addition to the terms of the Plan, the Agreement, and the terms of any other document that may apply to you and your award.Notifications

Retention of Personal Data. The Relevant TriMas Companies will retain the Grantee’s personal data for the duration of the Plan and for a further period of eight years after the Grantee ceases to be a member of the Plan. The Relevant TriMas Companies will retain the Grantee’s personal data for longer than the period specified above if required by law, to defend or exercise legal rights (such as defending legal claims) or to comply with regulatory obligations. The Grantee’s Rights In order to control the use of their personal data, each Grantee has the following controls over their personal data: • Each Grantee may request access to or copies of the personal data that the Relevant TriMas Companies hold about them by contacting their local human resources representative; • If the Grantee believes that any information the Relevant TriMas Companies hold about them is incorrect or incomplete, the Grantee should contact their local human resources representative as soon as possible. The Relevant TriMas Companies will take steps to seek to correct or update any information if they are satisfied that the information they hold is inaccurate. In certain circumstances, the Grantee may also request that the Relevant TriMas Companies restrict their processing; • Each grantee may request that their personal data be deleted where it is no longer necessary for the purposes for which it is being processed and provided there is no other lawful basis for which the Relevant TriMas Companies may continue to process such personal data. The Grantee can exercise this right by contacting their local human resources representative; • If the Relevant TriMas Companies are processing the Grantee’s personal data to meet their legitimate interests (as set out above), the Grantee may object to the processing of their personal information by the Relevant TriMas Companies. If the Relevant TriMas Companies are unable to demonstrate their legitimate grounds for that processing, they will no longer process the Grantee’s personal information for those purposes; • Where the Grantee has provided the Relevant TriMas Companies with their personal data that the Relevant TriMas Companies process using automated means, the Grantee may be entitled to a copy of that personal data in a structured, commonly-used and machine readable format. The Grantee can exercise this right by contacting their local human resources representative. The Grantee should contact their local human resources representative in relation to any concerns about how their personal data is processed and the Relevant TriMas Companies will try to resolve the Grantee’s concerns. However, if the Grantee considers that the Relevant TriMas Companies is in breach of its obligations under data protection laws, the Grantee may lodge a complaint with the Information Commissioner’s Office in the United Kingdom (such as by accessing xxxxx://xxx.xxx.xx/concerns/). Loss of Office or Employment. A new Section II.B.17 II.B.18 is added to the Agreement to read as follows: “In no circumstances shall Grantee, on ceasing to hold the office or employment by virtue of which he has been granted this Award, be entitled to any compensation for any loss of any right or benefit or prospective right or benefit under this Award or the Plan which he might otherwise have enjoyed whether such compensation is claimed by way of damages for wrongful dismissal or other breach of contract or by way of compensation for loss of office or otherwise.” APPENDIX C TO RESTRICTED STOCK UNITS AGREEMENT CALIFORNIA ADDENDUM Additional Terms and Conditions for Equity Grants Under the TriMas Corporation 2017 Equity and Incentive Compensation Plan, as amended Terms and Conditions This Addendum includes additional terms and conditions that govern the Restricted Stock Units granted to you under the TriMas Corporation 2017 Equity and Incentive Compensation Plan (referred to as the “Plan”) if you are employed and/or reside in California or if the Company determines that the application of such terms and conditions is necessary or advisable in order to comply with applicable law. Certain capitalized terms used but not defined in this Addendum have the meanings set forth in the Plan and/or your award agreement (the “Agreement”) that relates to your award. By accepting your award, you agree to be bound by the terms and conditions contained in the paragraphs below in addition to the terms of the Plan, the Agreement, and the terms of any other document that may apply to you and your award.

Retention of Personal Data. The Relevant TriMas Companies will retain the Grantee’s personal data for the duration of the Plan and for a further period of eight years after the Grantee ceases to be a member of the Plan. The Relevant TriMas Companies will retain the Grantee’s personal data for longer than the period specified above if required by law, to defend or exercise legal rights (such as defending legal claims) or to comply with regulatory obligations. The Grantee’s Rights In order to control the use of their personal data, each Grantee has the following controls over their personal data: • Each Grantee may request access to or copies of the personal data that the Relevant TriMas Companies hold about them by contacting their local human resources representative; • If the Grantee believes that any information the Relevant TriMas Companies hold about them is incorrect or incomplete, the Grantee should contact their local human resources representative as soon as possible. The Relevant TriMas Companies will take steps to seek to correct or update any information if they are satisfied that the information they hold is inaccurate. In certain circumstances, the Grantee may also request that the Relevant TriMas Companies restrict their processing; x • Each grantee may request that their personal data be deleted where it is no longer necessary for the purposes for which it is being processed and provided there is no other lawful basis for which the Relevant TriMas Companies may continue to process such personal data. The Grantee can exercise this right by contacting their local human resources representative; • If the Relevant TriMas Companies are processing the Grantee’s personal data to meet their legitimate interests (as set out above), the Grantee may object to the processing of their personal information by the Relevant TriMas Companies. If the Relevant TriMas Companies are unable to demonstrate their legitimate grounds for that processing, they will no longer process the Grantee’s personal information for those purposes; • Where the Grantee has provided the Relevant TriMas Companies with their personal data that the Relevant TriMas Companies process using automated means, the Grantee may be entitled to a copy of that personal data in a structured, commonly-used and machine readable format. The Grantee can exercise this right by contacting their local human resources representative. The Grantee should contact their local human resources representative in relation to any concerns about how their personal data is processed and the Relevant TriMas Companies will try to resolve the Grantee’s concerns. However, if the Grantee considers that the Relevant TriMas Companies is in breach of its obligations under data protection laws, the Grantee may lodge a complaint with the Information Commissioner’s Office in the United Kingdom (such as by accessing xxxxx://xxx.xxx.xx/concerns/). .” Loss of Office or Employment. A new Section II.B.17 II.B.18 is added to the Agreement to read as follows: “In no circumstances shall Grantee, on ceasing to hold the office or employment by virtue of which he has been granted this Award, be entitled to any compensation for any loss of any right or benefit or prospective right or benefit under this Award or the Plan which he might otherwise have enjoyed whether such compensation is claimed by way of damages for wrongful dismissal or other breach of contract or by way of compensation for loss of office or otherwise.” APPENDIX C D TO RESTRICTED PERFORMANCE STOCK UNITS UNIT AGREEMENT CALIFORNIA ADDENDUM Additional Terms and Conditions for Equity Grants Under the TriMas Corporation 2017 2023 Equity and Incentive Compensation Plan, as amended Terms and Conditions This Addendum includes additional terms and conditions that govern the performance-based Restricted Stock Units (“PSUs”) granted to you under the TriMas Corporation 2017 2023 Equity and Incentive Compensation Plan (referred to as the “Plan”) if you are employed and/or reside in California or if the Company determines that the application of such terms and conditions is necessary or advisable in order to comply with applicable law. Certain capitalized terms used but not defined in this Addendum have the meanings set forth in the Plan and/or your award agreement (the “Agreement”) that relates to your award. By accepting your award, you agree to be bound by the terms and conditions contained in the paragraphs below in addition to the terms of the Plan, the Agreement, and the terms of any other document that may apply to you and your award.

Retention of Personal Data. The Relevant TriMas Companies will retain the Grantee’s personal data for the duration of the Plan and for a further period of eight years after the Grantee ceases to be a member of the Plan. The Relevant TriMas Companies will retain the Grantee’s personal data for longer than the period specified above if required by law, to defend or exercise legal rights (such as defending legal claims) or to comply with regulatory obligations. The Grantee’s Rights In order to control the use of their personal data, each Grantee has the following controls over their personal data: • Each Grantee may request access to or copies of the personal data that the Relevant TriMas Companies hold about them by contacting their local human resources representative; • If the Grantee believes that any information the Relevant TriMas Companies hold about them is incorrect or incomplete, the Grantee should contact their local human resources representative as soon as possible. The Relevant TriMas Companies will take steps to seek to correct or update any information if they are satisfied that the information they hold is inaccurate. In certain circumstances, the Grantee may also request that the Relevant TriMas Companies restrict their processing; • Each grantee may request that their personal data be deleted where it is no longer necessary for the purposes for which it is being processed and provided there is no other lawful basis for which the Relevant TriMas Companies may continue to process such personal data. The Grantee can exercise this right by contacting their local human resources representative; • If the Relevant TriMas Companies are processing the Grantee’s personal data to meet their legitimate interests (as set out above), the Grantee may object to the processing of their personal information by the Relevant TriMas Companies. If the Relevant TriMas Companies are unable to demonstrate their legitimate grounds for that processing, they will no longer process the Grantee’s personal information for those purposes; • Where the Grantee has provided the Relevant TriMas Companies with their personal data that the Relevant TriMas Companies process using automated means, the Grantee may be entitled to a copy of that personal data in a structured, commonly-used and machine readable format. The Grantee can exercise this right by contacting their local human resources representative. The Grantee should contact their local human resources representative in relation to any concerns about how their personal data is processed and the Relevant TriMas Companies will try to resolve the Grantee’s concerns. However, if the Grantee considers that the Relevant TriMas Companies is in breach of its obligations under data protection laws, the Grantee may lodge a complaint with the Information Commissioner’s Office in the United Kingdom (such as by accessing xxxxx://xxx.xxx.xx/concerns/). Loss of Office or Employment. A new Section II.B.17 II.B.18 is added to the Agreement to read as follows: “In no circumstances shall Grantee, on ceasing to hold the office or employment by virtue of which he has been granted this Award, be entitled to any compensation for any loss of any right or benefit or prospective right or benefit under this Award or the Plan which he might otherwise have enjoyed whether such compensation is claimed by way of damages for wrongful dismissal or other breach of contract or by way of compensation for loss of office or otherwise.” APPENDIX C TO RESTRICTED STOCK UNITS AGREEMENT CALIFORNIA ADDENDUM Additional Terms and Conditions for Equity Grants Under the TriMas Corporation 2017 Equity and Incentive Compensation Plan, as amended Terms and Conditions This Addendum includes additional terms and conditions that govern the Restricted Stock Units granted to you under the TriMas Corporation 2017 Equity and Incentive Compensation Plan (referred to as the “Plan”) if you are employed and/or reside in California or if the Company determines that the application of such terms and conditions is necessary or advisable in order to comply with applicable law. Certain capitalized terms used but not defined in this Addendum have the meanings set forth in the Plan and/or your award agreement (the “Agreement”) that relates to your award. By accepting your award, you agree to be bound by the terms and conditions contained in the paragraphs below in addition to the terms of the Plan, the Agreement, and the terms of any other document that may apply to you and your award.

Retention of Personal Data. The Relevant TriMas Companies will retain the Grantee’s personal data for the duration of the Plan and for a further period of eight years after the Grantee ceases to be a member of the Plan. The Relevant TriMas Companies will retain the Grantee’s personal data for longer than the period specified above if required by law, to defend or exercise legal rights (such as defending legal claims) or to comply with regulatory obligations. The Grantee’s Rights In order to control the use of their personal data, each Grantee has the following controls over their personal data: • Each Grantee may request access to or copies of the personal data that the Relevant TriMas Companies hold about them by contacting their local human resources representative; • If the Grantee believes that any information the Relevant TriMas Companies hold about them is incorrect or incomplete, the Grantee should contact their local human resources representative as soon as possible. The Relevant TriMas Companies will take steps to seek to correct or update any information if they are satisfied that the information they hold is inaccurate. In certain circumstances, the Grantee may also request that the Relevant TriMas Companies restrict their processing; • Each grantee may request that their personal data be deleted where it is no longer necessary for the purposes for which it is being processed and provided there is no other lawful basis for which the Relevant TriMas Companies may continue to process such personal data. The Grantee can exercise this right by contacting their local human resources representative; • If the Relevant TriMas Companies are processing the Grantee’s personal data to meet their legitimate interests (as set out above), the Grantee may object to the processing of their personal information by the Relevant TriMas Companies. If the Relevant TriMas Companies are unable to demonstrate their legitimate grounds for that processing, they will no longer process the Grantee’s personal information for those purposes; • Where the Grantee has provided the Relevant TriMas Companies with their personal data that the Relevant TriMas Companies process using automated means, the Grantee may be entitled to a copy of that personal data in a structured, commonly-used and machine readable format. The Grantee can exercise this right by contacting their local human resources representative. The Grantee should contact their local human resources representative in relation to any concerns about how their personal data is processed and the Relevant TriMas Companies will try to resolve the Grantee’s concerns. However, if the Grantee considers that the Relevant TriMas Companies is in breach of its obligations under data protection laws, the Grantee may lodge a complaint with the Information Commissioner’s Office in the United Kingdom (such as by accessing xxxxx://xxx.xxx.xx/concerns/). .” Loss of Office or Employment. A new Section II.B.17 II.B.19 is added to the Agreement to read as follows: “In no circumstances shall Grantee, on ceasing to hold the office or employment by virtue of which he has been granted this Award, be entitled to any compensation for any loss of any right or benefit or prospective right or benefit under this Award or the Plan which he might otherwise have enjoyed whether such compensation is claimed by way of damages for wrongful dismissal or other breach of contract or by way of compensation for loss of office or otherwise.” APPENDIX C TO RESTRICTED STOCK UNITS AGREEMENT CALIFORNIA ADDENDUM Additional Terms and Conditions for Equity Grants Under the TriMas Corporation 2017 Equity and Incentive Compensation Plan, as amended Terms and Conditions This Addendum includes additional terms and conditions that govern the Restricted Stock Units granted to you under the TriMas Corporation 2017 Equity and Incentive Compensation Plan (referred to as the “Plan”) if you are employed and/or reside in California or if the Company determines that the application of such terms and conditions is necessary or advisable in order to comply with applicable law. Certain capitalized terms used but not defined in this Addendum have the meanings set forth in the Plan and/or your award agreement (the “Agreement”) that relates to your award. By accepting your award, you agree to be bound by the terms and conditions contained in the paragraphs below in addition to the terms of the Plan, the Agreement, and the terms of any other document that may apply to you and your award.