Class A Ordinary Share, par value $0.09 per share

Maase Inc.

Building 48, Zhixin Manufacturing Valley, Shandong Province, F4, 266000

This Schedule 13D is being filed by Sea Synergy Limited ("Sea Synergy"), Summer Day Limited ("Summer Day"), Yinan Hu, Jianguo Cheng and Wei Yang (collectively, the "Reporting Persons") pursuant to Rule 13d-1(k) promulgated by the SEC under Section 13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act").

The business address of Sea Synergy, Jianguo Cheng and Wei Yang is OMC Chambers, Wickhams Cay 1, Road Town, Tortola, British Virgin Islands. The business address of Summer Day and Yinan Hu is 27/F, Pearl River Tower, No. 15 West Zhujiang Road, Guangzhou, 510623.

Jianguo Chen and Wei Yang serve as directors of Sea Synergy. Yinan Hu serves as a director of Summer Day.

During the last five years, the Reporting Persons have not been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of which such person was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.

Sea Synergy is an exempted company with limited liability incorporated under the laws of British Virgin Island. Summer Day is an exempted company with limited liability incorporated under the laws of British Virgin Island. Yinan Hu is a PRC citizen. Jianguo Cheng is a Nevisian citizen. Wei Yang is a PRC citizen.

The aggregate number of Class A Ordinary Shares beneficially owned by the Reporting Persons is 4,444,445 Class A Ordinary Shares directly held by Sea Synergy which in turn is owned by Jianguo Cheng and Wei Yang. Pursuant to Section 13(d) of the Exchange Act and the rules promulgated thereunder, Jianguo Cheng and Wei Yang will be deemed to beneficially own all of the Class A Ordinary Shares of the Issuer held by Sea Synergy. The aggregate percentage of beneficial ownership of Sea Synergy, Jianguo Cheng and Wei Yang is 1.39% and it represents 0.45% of the voting power of the Issuer. Percentage of beneficial ownership of Sea Synergy, Jianguo Cheng and Wei Yang is based on 319,864,024 ordinary shares (excluding treasury shares), comprising of 313,197,356 Class A Ordinary Shares (excluding treasury shares) and 6,666,668 Class B ordinary shares, par value $0.09 per share (the "Class B Ordinary Shares") of the Issuer, outstanding as of December 26, 2025 according to records of the Issuer. Each Class A Ordinary Share is entitled to one (1) vote while each Class B Ordinary Share is entitled to one hundred (100) votes on any and all matters submitted for a vote. Yinan Hu, and his wholly-owned subsidiary, Summer Day, has no beneficial ownership of the Class A Ordinary Shares or other interest in the Issuer.

Sea Synergy has sole voting and dispositive power over the Class A Ordinary Shares as reported in this Schedule 13D. Jianguo Cheng and Wei Yang have shared voting and dispositive power over the Class A Ordinary Shares as reported in this Schedule 13D. Summer Day and Yinan Hu have no voting or dispositive power over the Class A Ordinary Shares as reported in this Schedule 13D.

During the 60 days preceding the filing of this Schedule 13D, none of the Reporting Persons and, to their knowledge, none of the director and officer of the Reporting Persons has effected any transactions in the ordinary shares of the Issuer except as reported herein.

To the best knowledge of the Reporting Persons, except for the agreement described in this Schedule 13D, no one other than the Reporting Persons, or the holders of interests in the Reporting Persons, has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the ordinary shares of the Issuer that they beneficially own.

Not applicable.