ceasing of the Zinc operations, total sales volumes in Q4 2017 dropped by 7% from Q4 2016. The sales volumes of imported metals, at lower margins than the PDI’s own mine production, reached 52% of total

of raw materials is down. As a result, gross margins widened to 20.9% in 2017 from 14.8% in 2016. Production overhead in 2017 increased by 17.31 million baht or 15.7% from 2016 due to the cost of

last year along with declining proportion of sales in the year 2019 and the recognition of income from some projects with lower margins. Other Income Other income is income from other business activities

of last year along with declining proportion of sales in the year 2019 and the recognition of income from some projects with lower margins. Other Income Other income is income from other business

Securities and Exchange Commission   SorThor. 25/2550 Re: Prescription of the Rate or Value of Property Deposited as Margins 31/08/2007 16/09/2007 4. Notification of the Office of the Securities and Exchange

2 of 2 equivalent in the same period last year. Which is in accordance with the sales proportion of the company in the year 2020 increased and increased profit margins of group of ice machines and

% comparing to Q2 2019. This diminishing was mostly caused by decrease of Epichlorohydrin’s spread margins, lower sales volume as a result of the spread of COVID-19 infection and recording of tax expense from

https://www.sec.or.th/TH/Documents/ActandRoyalEnactment/Act/translate-trustact.doc .. Exchange Commission No. SorThor. 25/2550 Re: Prescription of the Rate or Value of Property Deposited as Margins

://publish.sec.or.th/nrs/4388pe.doc .. Exchange Commission No. SorThor. 25/2550 Re: Prescription of the Rate or Value of Property Deposited as Margins _____________ By virtue of: (1) Clause 1(9) of the Notification of

Margins _____________ By virtue of: (1) Clause 1(9) of the Notification of the Securities and Exchange https://publish.sec.or.th/nrs/4245pe.doc Translation established under following Notifications: (1