Management Name : Mr NATEE PANICHEWA | Type of securities : Common share | Methods of Acquisition / Disposition : Buy | Transaction Date : 03/07/2018

Management Name : Miss SOMJAI PRATHUMTONG | Type of securities : Common share | Methods of Acquisition / Disposition : Sell | Transaction Date : 11/12/2015

No UN/SET/HO/A61/011503 15th January 2018 Subject: Clarification of the Connected Transaction in the company’s asset disposal Attention: President of the Stock Exchange of Thailand Unique Engineering

Year Receive Date Details UNIQUE MINING SERVICES PUBLIC COMPANY LIMITED 2020 30/03/2021 UNIQUE MINING SERVICES PUBLIC COMPANY LIMITED 2019 31/03/2020 UNIQUE MINING SERVICES PUBLIC COMPANY LIMITED 2018 09

Period As Of Details UNIQUE MINING SERVICES PUBLIC COMPANY LIMITED 2023 Reviewed Company Q2 30/06/2023 UNIQUE MINING SERVICES PUBLIC COMPANY LIMITED 2023 Reviewed Consolidated Q2 30/06/2023 UNIQUE MINING

Period As Of Details UNIQUE ENGINEERING AND CONSTRUCTION PUBLIC COMPANY LIMITED 2023 Reviewed Consolidated Q2 30/06/2023 UNIQUE ENGINEERING AND CONSTRUCTION PUBLIC COMPANY LIMITED 2023 Reviewed Company Q2

Derivative Warrants | UNIQ01C1602A | DERIVATIVE CALL WARRANTS ON UNIQUE ENGINEERING AND CONSTRUCTION PUBLIC COMPANY LIMITED ISSUED BY BUALUANG SECURITIES PUBLIC COMPANY LIMITED LAST TRADING IN

Derivative Warrants | UNIQ28C1603A | DERIVATIVE CALL WARRANTS ON UNIQUE ENGINEERING AND CONSTRUCTION PUBLIC COMPANY LIMITED ISSUED BY MACQUARIE SECURITIES (THAILAND) LIMITED LAST TRADING IN MARCH

Derivative Warrants | UNIQ08C1605A | DERIVATIVE CALL WARRANTS ON UNIQUE ENGINEERING AND CONSTRUCTION PUBLIC COMPANY LIMITED ISSUED BY ASIA PLUS SECURITIES COMPANY LIMITED LAST TRADING IN MAY 2016 # A

Derivative Warrants | UNIQ01P1602A | DERIVATIVE PUT WARRANTS ON UNIQUE ENGINEERING AND CONSTRUCTION PUBLIC COMPANY LIMITED ISSUED BY BUALUANG SECURITIES PUBLIC COMPANY LIMITED LAST TRADING IN