หนา้ 1 จาก 1 Translation November 13, 2019 Subject: Management explanation and analysis for Quarter ended 30 September 2019 Attn: The Managing Director, the Stock Exchange of Thailand Pacific Pipe

1 -Translation- Ref :IR 62/023 December 23, 2019 Subject: Change in Shareholding Structure of Subsidiary Company (edit no.2 ) To: President, The Stock Exchange of Thailand T.K.S. Technologies Public

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Exchange Act B.E.2535 . Preliminary version: incomplete and/or being reviewedinformation. Revised version: new report submitted by the reporter to replace theold one. Chain principle: indirect acquisition of

Exchange Act B.E.2535 . Preliminary version: incomplete and/or being reviewedinformation. Revised version: new report submitted by the reporter to replace theold one. Chain principle: indirect acquisition of

Exchange Act B.E.2535 . Preliminary version: incomplete and/or being reviewedinformation. Revised version: new report submitted by the reporter to replace theold one. Chain principle: indirect acquisition of

Exchange Act B.E.2535 . Preliminary version: incomplete and/or being reviewedinformation. Revised version: new report submitted by the reporter to replace theold one. Chain principle: indirect acquisition of

Exchange Act B.E.2535 . Preliminary version: incomplete and/or being reviewedinformation. Revised version: new report submitted by the reporter to replace theold one. Chain principle: indirect acquisition of

in the holding of individuals, thegroup percentage of acquisition/disposition, the group percentage after theacquisition/disposition and the person(s) under Section 258 of the Securities and Exchange

Exchange Act B.E.2535 . Preliminary version: incomplete and/or being reviewedinformation. Revised version: new report submitted by the reporter to replace theold one. Chain principle: indirect acquisition of