Tranche Update on Aberdeen Asian Income Fund Limited's Equity Buyback Plan announced on May 19, 2023.

abrdn Asian Income Fund Limited is a closed-end investment company. The investment objective of the Company is to provide investors with a total return primarily through investing in Asia Pacific securities, including those with an above average yield. The Company’s segment is to invests in equity securities and debt instruments. The Company invests in the Asia Pacific securities, such as global depositary receipts (GDRs), listed on other international stock exchanges; companies listed on other international exchanges that derive significant revenues or profits from the Asia Pacific region, and debt issued by governments or companies in the Asia Pacific region or denominated in Asia Pacific currencies. The Company invest in all types of securities, including equity shares, preference shares, debt, convertible securities, warrants and other equity-related securities. It invests in small, mid and large capitalization companies. The Company's investment manager is abrdn Asia Limited.