Common use of INVESTMENTS IN ASSOCIATES Clause in Contracts

INVESTMENTS IN ASSOCIATES. 11.1 Investments in associated companies accounted for using the cost and equity method which consisted of : Paid-up capital (Baht) Proportion of share holding (%) Name of company Type of business 2019 2018 2019 2018 Consolidated financial statements / Separate financial statements Direct associated company Vibharam Hospital Co., Ltd. Hospital 1,654,803,530 1,654,803,530 40.75 40.75 Thippayabadin Co., Ltd. Trading medical instrument 450,000,000 450,000,000 33.33 33.33 Bangpo General Hospital Co., Ltd. Hospital 350,000,000 350,000,000 28.57 28.57 Consolidated financial statements Indirect associated companies Khelang Nakorn Hospital Co., Ltd. Hospital 89,708,200 89,708,200 11.99 11.99 Pawo Hospital Co., Ltd. Hospital 11,625,750 11,625,750 23.54 23.54 Baht At equity method At cost method Name of company 2019 2018 2019 2018 Consolidated financial statements / Separate financial statements Direct associated company Vibharam Hospital Co., Ltd. 1,844,434,138 1,762,781,223 1,304,865,788 1,304,865,788 Thippayabadin Co., Ltd. 70,726,462 81,845,306 172,500,000 172,500,000 Bangpo General Hospital Co., Ltd. 312,300,353 300,791,832 300,000,000 300,000,000 Total 1,777,365,788 1,777,365,788 Baht At equity method At cost method Name of company 2019 2018 2019 2018 Consolidated financial statements Indirect associated companies Khelang Nakorn Hospital Co., Ltd. 110,655,531 101,804,620 30,882,500 30,882,500 Pawo Hospital Co., Ltd. 15,835,382 13,030,339 29,813,600 29,813,600 Less Allowance for impairment of investments in Pawo Hospital Co., Ltd. - - (13,978,218) (16,783,261) Total 2,353,951,866 2,260,253,320 1,824,083,670 1,821,278,627

INVESTMENTS IN ASSOCIATES. 11.1 Investments in associated companies accounted for using the cost and equity method which consisted of : Paid-up capital (Baht) Proportion of share holding (%) As at September As at December As at September As at December Name of company Type of business 2019 2018 2019 2018 Consolidated financial statements / Separate financial statements Direct associated company companies 30, 2021 31, 2020 30, 2021 31, 2020 Vibharam Hospital Co., Ltd. Hospital 1,654,803,530 1,654,803,530 40.75 40.75 2,000,000,000 2,000,000,000 33.73 33.73 Thippayabadin Co., Ltd. Trading medical instrument 450,000,000 450,000,000 33.33 33.33 522,840,000 392,840,000 38.18 38.18 Bangpo General Hospital Co., Ltd. Hospital 350,000,000 350,000,000 28.57 28.57 Consolidated financial statements Indirect associated companies Khelang Nakorn Hospital Co., Ltd. Hospital 89,708,200 89,708,200 11.99 11.99 Pawo Hospital Co., Ltd. Hospital 11,625,750 11,625,750 23.54 23.54 Baht At equity method At cost method As at September As at December As at September As at December Name of company 2019 2018 2019 2018 Consolidated financial statements / Separate financial statements Direct associated company companies 30, 2021 31, 2020 30, 2021 31, 2020 Vibharam Hospital Co., Ltd. 1,844,434,138 1,762,781,223 1,304,865,788 1,304,865,788 2,181,979,733 1,690,154,047 1,304,865,248 1,304,865,248 Thippayabadin Co., Ltd. 70,726,462 81,845,306 172,500,000 58,733,456 21,127,292 222,134,000 172,500,000 Bangpo General Hospital Co., Ltd. 312,300,353 300,791,832 334,314,350 318,939,772 300,000,000 300,000,000 Less Allowance for impairment of investments in Thippayabadin Co., Ltd. - - (136,005,080) (136,005,080) Total 1,777,365,788 1,777,365,788 Baht At equity method At cost method Name of company 2019 2018 2019 2018 1,690,994,168 1,641,360,168 Consolidated financial statements Indirect associated companies Khelang Nakorn Hospital Co., Ltd. 110,655,531 101,804,620 107,483,678 109,516,558 30,882,500 30,882,500 Pawo Hospital Co., Ltd. 15,835,382 13,030,339 21,877,709 10,344,577 29,813,600 29,813,600 Less Allowance for impairment of investments in Pawo Hospital Co., Ltd. - - (13,978,2187,935,891) (16,783,26119,469,023) Total 2,353,951,866 2,260,253,320 1,824,083,670 1,821,278,6272,704,388,926 2,150,082,246 1,743,754,377 1,682,587,245

INVESTMENTS IN ASSOCIATES. 11.1 Investments in associated companies accounted for using the cost and equity method which consisted of : Paid-up capital (Baht) Proportion of share holding (%) Name of company Type of business As at June 30, 2019 As at December 31, 2018 As at June 30, 2019 As at December 31, 2018 Consolidated financial statements / statements/Separate financial statements Direct associated company Vibharam Hospital Co., Ltd. Hospital 1,654,803,530 1,654,803,530 40.75 40.75 Thippayabadin Co., Ltd. Trading medical instrument 450,000,000 450,000,000 33.33 33.33 Bangpo General Hospital Co., Ltd. Hospital 350,000,000 350,000,000 28.57 28.57 Consolidated financial statements Indirect associated companies Khelang Nakorn Hospital Co., Ltd. Hospital 89,708,200 89,708,200 44,854,100 44,854,100 11.99 11.99 Pawo Hospital Co., Ltd. Hospital 11,625,750 11,625,750 23.54 23.54 Baht At equity method At cost method As at June As at December As at June As at December Name of company 30, 2019 31, 2018 30, 2019 31, 2018 Consolidated financial statements / statements/Separate financial statements Direct associated company Vibharam Hospital Co., Ltd. 1,844,434,138 1,824,998,523 1,762,781,223 1,304,865,788 1,304,865,788 Thippayabadin Co., Ltd. 70,726,462 78,603,005 81,845,306 172,500,000 172,500,000 Bangpo General Hospital Co., Ltd. 312,300,353 304,420,912 300,791,832 300,000,000 300,000,000 Total 1,777,365,788 1,777,365,788 Baht At equity method At cost method Name of company 2019 2018 2019 2018 Consolidated financial statements Indirect associated companies Khelang Nakorn Hospital Co., Ltd. 110,655,531 101,721,376 101,804,620 30,882,500 30,882,500 Pawo Hospital Co., Ltd. 15,835,382 13,439,596 13,030,339 29,813,600 29,813,600 Less Allowance for impairment of investments Investments in Pawo Hospital Co., Ltd. - - (13,978,21816,374,004) (16,783,261) Total 2,353,951,866 2,323,183,412 2,260,253,320 1,824,083,670 1,821,687,884 1,821,278,627

INVESTMENTS IN ASSOCIATES. 11.1 Investments in associated companies accounted for using the cost and equity method which consisted of : Paid-up capital (Baht) Proportion of share holding (%) As at September As at December As at September As at December Name of company Type of business 2019 2018 2019 2018 Consolidated financial statements / statements/Separate financial statements Direct associated company Vibharam Hospital Co., Ltd. Hospital 1,654,803,530 1,654,803,530 40.75 40.75 Thippayabadin Co., Ltd. Trading medical instrument 450,000,000 450,000,000 33.33 33.33 Bangpo General Hospital Co., Ltd. Hospital 350,000,000 350,000,000 28.57 28.57 Direct associated company 30, 2019 31, 2018 30, 2019 31, 2018 Consolidated financial statements Indirect associated companies Khelang Nakorn Hospital Co., Ltd. Hospital 89,708,200 89,708,200 11.99 11.99 Pawo Hospital Co., Ltd. Hospital 11,625,750 11,625,750 23.54 23.54 Baht At equity method At cost method As at September As at December As at September As at December Name of company 30, 2019 31, 2018 30, 2019 31, 2018 Consolidated financial statements / statements/Separate financial statements Direct associated company Vibharam Hospital Co., Ltd. 1,844,434,138 1,741,570,778 1,762,781,223 1,304,865,788 1,304,865,788 Thippayabadin Co., Ltd. 70,726,462 74,671,489 81,845,306 172,500,000 172,500,000 Bangpo General Hospital Co., Ltd. 312,300,353 307,996,041 300,791,832 300,000,000 300,000,000 Total 1,777,365,788 1,777,365,788 Baht At equity method At cost method Name of company 2019 2018 2019 2018 Consolidated financial statements Indirect associated companies Khelang Nakorn Hospital Co., Ltd. 110,655,531 106,726,161 101,804,620 30,882,500 30,882,500 Pawo Hospital Co., Ltd. 15,835,382 15,888,746 13,030,339 29,813,600 29,813,600 Less Allowance for impairment of investments Investments in Pawo Hospital Co., Ltd. - - (13,978,21813,924,854) (16,783,261) Total 2,353,951,866 2,246,853,215 2,260,253,320 1,824,083,670 1,824,137,034 1,821,278,627

INVESTMENTS IN ASSOCIATES. 11.1 12.1 Investments in associated companies accounted for using the cost and equity method which consisted of : Paid-up capital (Baht) Proportion of share holding (%) Name of company Type of business 2019 2018 2019 2018 2022 2021 2022 2021 Consolidated financial statements / Separate financial statements Direct associated company Vibharam Hospital Co., Ltd. Hospital 1,654,803,530 1,654,803,530 40.75 40.75 2,000,000,000 2,000,000,000 33.85 33.85 Thippayabadin Co., Ltd. Trading medical instrument 450,000,000 450,000,000 33.33 33.33 492,108,000 492,108,000 36.50 40.57 Bangpo General Hospital Co., Ltd. Hospital 350,000,000 350,000,000 28.57 28.57 Consolidated financial statements Indirect associated companies Khelang Nakorn Hospital Co., Ltd. Hospital 89,708,200 89,708,200 11.99 11.99 Pawo Hospital Co., Ltd. Hospital - 11,625,750 11,625,750 - 23.54 23.54 Baht Watcharasirivej Co., Ltd. Hospital 600,000,000 - 21.47 - Bah t At equity method At cost method Name of company 2019 2018 2019 2018 2022 2021 2022 2021 Consolidated financial statements / Separate financial statements Direct associated company Vibharam Hospital Co., Ltd. 1,844,434,138 1,762,781,223 1,304,865,788 1,304,865,788 2,432,031,061 2,446,027,599 1,317,365,248 1,317,365,248 Thippayabadin Co., Ltd. 70,726,462 81,845,306 172,500,000 172,500,000 15,260,393 67,043,840 199,879,875 222,134,000 Bangpo General Hospital Co., Ltd. 312,300,353 300,791,832 351,864,072 354,641,648 300,000,000 300,000,000 Less Allowance for impairment of investments in Thippayabadin Co., Ltd. (136,005,080) (136,005,080) Total 1,777,365,788 1,777,365,788 Baht At equity method At cost method Name of company 2019 2018 2019 2018 1,681,240,043 1,703,494,168 Consolidated financial statements Indirect associated companies Khelang Nakorn Hospital Co., Ltd. 110,655,531 101,804,620 124,537,054 110,007,794 30,882,500 30,882,500 Pawo Hospital Co., Ltd. 15,835,382 13,030,339 - 18,884,791 - 29,813,600 29,813,600 Watcharasirivej Co., Ltd. 184,528,172 - 189,322,200 - Less Allowance for impairment of investments in Pawo Hospital Co., Ltd. - - - (13,978,218) (16,783,2619,704,360) Total 2,353,951,866 2,260,253,320 1,824,083,670 1,821,278,6273,108,220,752 2,996,605,672 1,901,444,743 1,754,485,908

INVESTMENTS IN ASSOCIATES. 11.1 Investments in associated companies accounted for using the cost and equity method which consisted of : Paid-up capital (Baht) Proportion of share holding (%) As at March As at December As at March As at December Name of company Type of business 2019 2018 2019 2018 31, 2021 31, 2020 31, 2021 31, 2020 Consolidated financial statements / Separate financial statements Direct associated company Vibharam Hospital Co., Ltd. Hospital 1,654,803,530 1,654,803,530 40.75 40.75 2,000,000,000 2,000,000,000 33.73 33.73 Thippayabadin Co., Ltd. Trading medical instrument 450,000,000 450,000,000 33.33 33.33 522,840,000 392,840,000 38.18 38.18 Bangpo General Hospital Co., Ltd. Hospital 350,000,000 350,000,000 28.57 28.57 Ltd.Consolidated financial statements Indirect associated companies Hospital 350,000,000 350,000,000 28.57 28.57 Khelang Nakorn Hospital Co., Ltd. Hospital 89,708,200 89,708,200 11.99 11.99 Pawo Hospital Co., Ltd. Hospital 11,625,750 11,625,750 23.54 23.54 Baht At equity method At cost method As at March As at December As at March As at December Name of company 2019 2018 2019 2018 31, 2021 31, 2020 31, 2021 31, 2020 Consolidated financial statements / Separate financial statements Direct associated company Vibharam Hospital Co., Ltd. 1,844,434,138 1,762,781,223 1,304,865,788 1,304,865,788 1,704,960,527 1,690,154,047 1,304,865,248 1,304,865,248 Thippayabadin Co., Ltd. 70,726,462 81,845,306 172,500,000 61,340,201 21,127,292 222,134,000 172,500,000 Bangpo General Hospital Co., Ltd. 312,300,353 300,791,832 319,717,136 318,939,772 300,000,000 300,000,000 Less Allowance for impairment of investments in Thippayabadin Co., Ltd. (136,005,080) (136,005,080) Total 1,777,365,788 1,777,365,788 Baht At equity method At cost method Name of company 2019 2018 2019 2018 1,690,994,168 1,641,360,168 Consolidated financial statements Indirect associated companies Khelang Nakorn Hospital Co., Ltd. 110,655,531 101,804,620 107,476,825 109,516,558 30,882,500 30,882,500 Pawo Hospital Co., Ltd. 15,835,382 13,030,339 15,032,723 10,344,577 29,813,600 29,813,600 Less Allowance for impairment of investments in Pawo Hospital Co., Ltd. - - (13,978,21814,780,877) (16,783,26119,469,023) Total 2,353,951,866 2,260,253,320 1,824,083,670 1,821,278,6272,208,527,412 2,150,082,246 1,736,909,391 1,682,587,245