์ - 34-0135 www.interpharma.co.th Inter Pharma Public Company Limited 140/9 ITF Tower, 9th Floor, Silom Road, Suriyawongse, Bangrak, Bangkok 10500, Thailand. Tel. 02-634-0225 Fax 02-634-0135

SAAM Energy Development Public Company Limited - 1 - 21 February 2020 Subject: Management Discussion and Analysis for the year ended 31 December 2019 To: The President The Stock Exchange of Thailand

decreasing in long- term loans from financial institution-net of current portion of Baht 9 million due to repayment during the period. 2.3 Shareholders’ equity As at 31 March 2020, the Company and its

offering of warrant to purchase ordinary shares of the Company to existing shareholders and joint ventures in subsidiary. (Edited) To: The President The Stock Exchange of Thailand Enclosure 1. Capital

Eng_MD&A Final Q3'19 November 13, 2019 Ref: SET-2019-011 Re: Management Discussion and Analysis for Quarter 3’ 2019 Attn. to: President The Stock Exchange of Thailand Filter Vision Public Company

คำอธิบายและการวิเคราะห์ของฝ่ายจัดการ 20 February 2018 Re: To clarify the financial statements as of 31 December 2017 To: President The Stock Exchange of Thailand WHA Corporation Public Company

selling price of hot-rolled coil for the year in 2017 increase around 18.54% comparing with last year together with the well manage production of the Company, the Company can generate cash margin by Baht

12,391 10,868 Average selling price of hot-rolled coil for the year in 2017 increase around 18.54% comparing with last year together with the well manage production of the Company, the Company can generate

loss was from the strengthening of the baht. The company policy is to cover forex risk with forward contracts results in a forex loss of 0.23 million baht or an increase of 0.04 million baht representing

SAAM Energy Development Public Company Limited - 1 - 12 May 2020 Subject: Management Discussion and Analysis for the period ended 31 March 2020 To: The President The Stock Exchange of Thailand SAAM