ANNOUNCEMENT OF (1) FINAL RESULTS FOR THE YEAR ENDED 31 MARCH 2022; (2) PAYMENT OF THE SECOND SPECIAL DIVIDEND; (3) PROPOSED ADOPTION OF A NEW SHARE OPTION SCHEME; (4) PROPOSED ADOPTION OF A NEW SHARE OPTION SCHEME OF A SUBSIDIARY; AND (5) PROPOSED AMENDMENTS TO EXISTING BYE-LAWS AND ADOPTION OF NEW BYE-LAWS