Thailand CH. Karnchang Public Company Limited (the “Company”) hereby reports the connected transaction among the Company and Expert Transport Co., Ltd., whose shares are held by the Company’s major

mean any person holding equivalent position called otherwise and such person shall be responsible for a line of work relating to provision of securities services, securities operation or research on

holding equivalent position called otherwise and such person shall be responsible for a line of work relating to provision of securities services, securities operation or research on securities or capital

equivalent position called otherwise, and such person shall be responsible for a line of work relating to securities services, securities operation, supervision of securities operation, or research on

operation, supervision of derivatives operation, or research on derivatives, or other similar lines of work regardless of the fact that such function provides services for other persons or for the benefit of

an indication of the general purpose of such commitments and the anticipated sources of funds needed to fulfill such commitments. 20 C. Research and Development Provide a description of the issuer's

FINANCIAL REVIEW AND PROSPECTS A. Operating Results ผลการดําเนินงาน B. Liquidity and Capital Resources แหลงเงินทุนและสภาพคลอง C. Research & Development, Patents and License, etc. การวิจัยและพัฒนา D. Trend

,especially the corrosive prevention part. Therefore, company would invest new research and development for appropriate products to suit Thai climate and environments. Please be informed. Yours Sincerely, Mr

Company overall. (11) Opinion of the Audit Committee and/or Company’s Directors that is different than the opinion of the Board of Directors : None (12) Opinion of the Independent Expert : None (13

Laboratory and Research Center (“AMARC”). Costs and Expenses  The Company reported the consolidated costs and expenses for Q1/2019 of Baht 345.54 million, nearby of Q1/2018 of Baht 345.61 million decreased by