Miss Natthaporn Yongwongpaiboon Mrs. Chamaiporn Yongwongpaiboon, Managing Director and Accounting and Finance Director of Permsin Steel Works Public Company Limited ("PERM"), knew the

Miss Lalinporn Yongwongpaiboon Mrs. Chamaiporn Yongwongpaiboon, Managing Director and Accounting and Finance Director of Permsin Steel Works Public Company Limited ("PERM"), knew the inside

Mr. Permsin Yongvongpaiboon Mrs. Chamaiporn Yongwongpaiboon, Managing Director and Accounting and Finance Director of Permsin Steel Works Public Company Limited ("PERM"), knew the inside

other company which the Company invested more than 10% of paid up capital. Please kindly be informed accordingly, Your Faithfully, (Mr.Niphon Charoenkit) Managing Director

Company’s sales and services revenue but sales and administrative expenses was fix. Please be informed accordingly Yours sincerely, K.C. Metalsheet Public Company Limited (Mr.Niphon Charoenkit) Managing

หน้า 1 จาก 1 Translation May 8, 2018 Subject: Management explanation and analysis for Quarter ended 31 March 2018 Attn: The Managing Director, the Stock Exchange of Thailand Pacific Pipe Public

Intaranukulkij Managing Director

หน้า 1 จาก 1 Translation February 22, 2019 Subject: Management explanation and analysis for Year ended 31 December 2018 Attn: The Managing Director, the Stock Exchange of Thailand Pacific Pipe Public

in term of percentage of revenues which was 0.58% in Q3/2018 to 0.44% in Q3/2019. Please be informed accordingly, Sincerely yours, Chaiyan Chakarakul Managing Director Lalin Property Public Co., Ltd.

, (Mr. Wichai Intaranukulkij) Managing Director