DATED March 28, 2022 CICC FINANCIAL TRADING LIMITED. as Investor andXINYI ENERGY HOLDINGS LIMITED as Company SUBSCRIPTION AGREEMENT RELATING TO THE SUBSCRIPTION OF SHARES INTHE CAPITAL OFXINYI ENERGY HOLDINGS LIMITEDAgreement • March 28th, 2022 • Hong KongContract TypeAgreementFiledMarch 28th, 2022JurisdictionHong Kong