X0202 SCHEDULE 13G/A 0001104659-22-020442 0001905842 XXXXXXXX LIVE 3 Class A and Class B ordinary shares, par value of $0.00001 per share 03/18/2026 0001828365 RLX Technology Inc. 74969N103 35/F, Pearl Intl Financial Center No. 9 Jian'an 1st Rd, Fin. St. 3rd Dist. Shenzhen F4 518100 Rule 13d-1(d) Ying (Kate) Wang F4 793057297.00 0.00 380555770.00 0.00 793057297.00 N 51.2 IN Rows 5 and 9 represent (i) 71,840,780 Class A ordinary shares held by BJ BJ Limited, (ii) 308,714,990 Class B ordinary shares held by Leo Valley Holding Limited, and (iii) 412,501,527 Class A ordinary shares in which Ms. Ying (Kate) Wang is entitled to the voting power pursuant to the Founders' Acting-In-Concert Undertakings and the Minority Shareholders' Acting-In-Concert Undertakings, respectively (each as defined below). a) On October 19, 2022, a series of acting-in-concert undertakings (the "Founders' Acting-In- Concert Undertakings") were entered into among RLX Technology Inc., Leo Valley Holding Limited, Ms. Ying (Kate) Wang, on the one hand, and each of Mr. Long (David) Jiang and Longtian Holding Limited, Mr. Yilong Wen and StarryInv Holding Limited, and certain minority shareholders of RLX Technology Inc., on the other hand. Pursuant to the Founders' Acting-In-Concert Undertakings, each of (i) Mr. Long (David) Jiang and Longtian Holding Limited, (ii) Mr. Yilong Wen and StarryInv Holding Limited, and (iii) certain minority shareholders of RLX Technology Inc. agrees to act in concert with, and take the same action as, Leo Valley Holding Limited in relation to all matters that require the decisions of the shareholders of RLX Technology Inc. b) On December 21, 2023, an acting-in-concert undertakings (the "Minority Shareholders' Acting-In-Concert Undertakings") was entered into among RLX Technology Inc., Leo Valley Holding Limited, Ms. Ying (Kate) Wang, on the one hand, and certain minority shareholders of RLX Technology Inc., on the other hand. Pursuant to the Minority Shareholders' Acting- In-Concert Undertakings, each of the undersigned minority shareholders of the Minority Shareholders' Acting-In-Concert Undertakings agrees to act in concert with, and take the same action as, Leo Valley Holding Limited in relation to all matters that require the decisions of the shareholders of RLX Technology Inc. Row 7 represents (i) 71,840,780 Class A ordinary shares held by BJ BJ Limited and (ii) 308,714,990 Class B ordinary shares held by Leo Valley Holding Limited. Ms. Ying (Kate) Wang is the sole director of BJ BJ Limited and Leo Valley Holding Limited. Leo Valley Holding Limited is beneficially owned and controlled by Lion Valley Limited, a British Virgin Islands company. Lion Valley Limited is wholly owned by Zedra Trust Company (Cayman) Limited, on behalf of and for the benefit of The Alpha Trust as the trustee. Ms. Ying (Kate) Wang is the settlor and enforcer of The Alpha Trust, and Ms. Wang and her family members are the trust's beneficiaries. Row 11 is based on 1,240,225,317 Class A ordinary shares and 308,714,990 Class B ordinary shares issued and outstanding as of March 18, 2025, assuming the conversion of all such Class B ordinary shares into the same number of Class A ordinary shares. Ms. Ying (Kate) Wang's percentage of economic interest is 19.9%, which excludes the economic interest represented by 71,840,780 Class A ordinary shares held by BJ BJ Limited for the purpose of administering share incentive awards under the 2021 share incentive plan ("2021 Plan") to the plan participants. Leo Valley Holding Limited D8 308714990.00 0.00 308714990.00 0.00 308714990.00 N 19.9 CO Long (David) Jiang F4 142797680.00 0.00 142797680.00 0.00 142797680.00 N 9.2 IN Rows 5, 7 and 9 represent 142,797,680 Class A ordinary shares held by Longtian Holding Limited, a British Virgin Islands company. Mr. Long (David) Jiang is the sole director of Longtian Holding Limited. Longtian Holding Limited is owned by Cititrust Private (Cayman) Limited as the trustee of The HuaDi Family Trust. Under the terms of The HuaDi Family Trust, Mr. Long (David) Jiang is the settlor of The HuaDi Family Trust. Mr. Long (David) Jiang and his family members are the trust's beneficiaries. Longtian Holding Limited D8 142797680.00 0.00 142797680.00 0.00 142797680.00 N 9.2 CO Yilong Wen F4 93343940.00 0.00 93343940.00 0.00 93343940.00 N 6.0 IN Rows 5, 7 and 9 represent 93,343,940 Class A ordinary shares held by StarryInv Holding Limited, a British Virgin Islands company. Mr. Yilong Wen is the sole director of StarryInv Holding Limited. StarryInv Holding Limited is owned by Cititrust Private (Cayman) Limited as the trustee of The UBGDX Family Trust. Under the terms of The UBGDX Family Trust, Mr. Yilong Wen is the settlor of The UBGDX Family Trust. Mr. Yilong Wen and his family members are the trust's beneficiaries. StarryInv Holding Limited D8 93343940.00 0.00 93343940.00 0.00 93343940.00 N 6.0 CO RLX Technology Inc. 35/F, Pearl Intl Financial Center, No. 9 Jian'an 1st Rd, Fin. St. 3rd Dist., Shenzhen, F4 518100 (1) Ying (Kate) Wang (2) Leo Valley Holding Limited (3) Long (David) Jiang (4) Longtian Holding Limited (5) Yilong Wen (6) StarryInv Holding Limited 35/F, Pearl International Financial Center, No. 9 Jian'an First Road, Financial Street, Third District, Bao'an District, Shenzhen, Guangdong Province, People's Republic of China (1) Ying (Kate) Wang - People's Republic of China (2) Leo Valley Holding Limited - British Virgin Islands (3) Long (David) Jiang - People's Republic of China (4) Longtian Holding Limited - British Virgin Islands (5) Yilong Wen - People's Republic of China (6) StarryInv Holding Limited - British Virgin Islands Y (1) Ying (Kate) Wang - 793,057,297 (2) Leo Valley Holding Limited - 308,714,990 (3) Long (David) Jiang - 142,797,680 (4) Longtian Holding Limited - 142,797,680 (5) Yilong Wen - 93,343,940 (6) StarryInv Holding Limited - 93,343,940 (1) Ying (Kate) Wang - 51.2% (19.9% economic interest) (2) Leo Valley Holding Limited - 19.9% (3) Long (David) Jiang - 9.2% (4) Longtian Holding Limited - 9.2% (5) Yilong Wen - 6.0% (6) StarryInv Holding Limited - 6.0% (1) Ying (Kate) Wang - 793,057,297 (2) Leo Valley Holding Limited - 308,714,990 (3) Long (David) Jiang - 142,797,680 (4) Longtian Holding Limited - 142,797,680 (5) Yilong Wen - 93,343,940 (6) StarryInv Holding Limited - 93,343,940 (1) Ying (Kate) Wang - 0 (2) Leo Valley Holding Limited - 0 (3) Long (David) Jiang - 0 (4) Longtian Holding Limited - 0 (5) Yilong Wen - 0 (6) StarryInv Holding Limited - 0 (1) Ying (Kate) Wang - 380,555,770 (2) Leo Valley Holding Limited - 308,714,990 (3) Long (David) Jiang - 142,797,680 (4) Longtian Holding Limited - 142,797,680 (5) Yilong Wen - 93,343,940 (6) StarryInv Holding Limited - 93,343,940 (1) Ying (Kate) Wang - 0 (2) Leo Valley Holding Limited - 0 (3) Long (David) Jiang - 0 (4) Longtian Holding Limited - 0 (5) Yilong Wen - 0 (6) StarryInv Holding Limited - 0 Y Y Y Y Y Y Exhibit 99.1 Joint Filing Agreement Ying (Kate) Wang /s/ Ying (Kate) Wang 03/18/2026 Leo Valley Holding Limited /s/ Ying (Kate) Wang 03/18/2026 Long (David) Jiang /s/ Long (David) Jiang 03/18/2026 Longtian Holding Limited /s/ Long (David) Jiang 03/18/2026 Yilong Wen /s/ Yilong Wen 03/18/2026 StarryInv Holding Limited /s/ Yilong Wen 03/18/2026