0001193125-26-192038 Sample Contracts

CONVERTIBLE NOTE PURCHASE AGREEMENT between YATSEN HOLDING LIMITED and Polaris Veritas Investment Limited Dated as of March 11, 2026
Convertible Note Purchase Agreement • April 29th, 2026 • Yatsen Holding LTD • Perfumes, cosmetics & other toilet preparations • New York

WHEREAS, the Company desires to issue, sell and deliver to the Purchaser, and the Purchaser desires to purchase and acquire from the Company, the Notes (as defined below) upon and subject to the terms and conditions set forth in this Agreement, together with accompanying warrants to purchase Class A Ordinary Shares substantially in the form attached hereto as Exhibit C (the “Warrants”); and

Third Amended and Restated Proxy Agreement and Power of Attorney
Proxy Agreement and Power of Attorney • April 29th, 2026 • Yatsen Holding LTD • Perfumes, cosmetics & other toilet preparations

This Third Amended and Restated Proxy Agreement and Power of Attorney (this “Agreement”) is executed on December 1, 2025 by and among:

Third Amended and Restated Equity Pledge Agreement
Equity Pledge Agreement • April 29th, 2026 • Yatsen Holding LTD • Perfumes, cosmetics & other toilet preparations • Beijing

This Third Amended and Restated Equity Pledge Agreement (this “Agreement”) is entered into as of December 1, 2025 by and among the following parties:

Third Amended and Restated Exclusive Call Option Agreement
Exclusive Call Option Agreement • April 29th, 2026 • Yatsen Holding LTD • Perfumes, cosmetics & other toilet preparations • Beijing

This Third Amended and Restated Exclusive Call Option Agreement (this “Agreement”) is entered into as of December 1, 2025 by and between: