Announcement PDF Notification of cessation of +securities Announcement Summary Entity name ATOMO DIAGNOSTICS LIMITED Announcement Type New announcement Date of this announcement Thursday August 03, 2023 Details of +securities that have ceased ASX +security code AT1AI Security description OPTION EXPIRING VARIOUS DATES EX 25C Number of +securities that have ceased 1,733,332 Refer to next page for full details of the announcement Notification of cessation of +securities 1/4 The +securities have ceased due to Date of cessation Lapse of conditional right to securities because the conditions have not been, or have become incapable of being, satisfied 03/08/2023 Notification of cessation of +securities Part 1 - Announcement Details 1.1 Name of +Entity ATOMO DIAGNOSTICS LIMITED We (the entity named above) provide the following information about our issued capital. 1.2 Registered Number Type Registration Number ABN 37142925684 1.3 ASX issuer code AT1 1.4 The announcement is New announcement 1.5 Date of this announcement 3/8/2023 Notification of cessation of +securities 2/4 Notification of cessation of +securities Part 2 - Details of +equity securities or +debt securities that have ceased ASX +Security Code and Description AT1AI : OPTION EXPIRING VARIOUS DATES EX 25C Unquoted +equity securities that have ceased Number of securities that have ceased 1,733,332 Reason for cessation Lapse of conditional right to securities because the conditions have not been, or have become incapable of being, satisfied Date of cessation 3/8/2023 Is the entity paying any consideration for the cessation? No Any other information the entity wishes to notify to ASX about the cessation? Notification of cessation of +securities 3/4 Notification of cessation of +securities Part 3 - Issued capital following changes Following the cessation of the +securities the subject of this notification, the issued capital of the entity will comprise: 3.1 Quoted +equity securities and +debt securities (total number of each +class of +securities quoted on ASX) Total number of +securities on issue ASX +security code and description AT1 : ORDINARY FULLY PAID 605,868,923 3.2 Unquoted +equity securities (total number of each +class of +equity securities issued but not quoted on ASX) Total number of +securities on issue ASX +security code and description AT1AJ : OPTION EXPIRING 14-APR-2024 EX $0.25 1,079,999 AT1AM : OPTION EXPIRING 14-APR-2025 EX $0.25 1,199,999 AT1AI : OPTION EXPIRING VARIOUS DATES EX 25C 1,600,000 AT1AL : OPTION EXPIRING 30-APR-2024 EX $0.60 2,000,000 AT1AK : OPTION EXPIRING 30-APR-2024 EX $0.40 2,000,000 AT1AN : OPTION EXPIRING 01-JUL-2027 EX $0.035 6,100,000 Note: the figures stated in the tables above are used to calculate the total market capitalisation of the entity published by ASX from time to time. The table will not include those classes of +securities that have ceased or lapsed in their entirety in ASX records before the announcement date described in Q1.5, even if the entity has advised ASX of a change to that class of +security in Part 2 of this form. Notification of cessation of +securities 4/4