subsidiaries by having the main substance is as follows. (Unit: Thousand Baht) Revenues Gross Profit Selling Admin Net profit 2017 837,308 293,207 80,159 93,260 -236,013 2018 929,354 325,527 88,001 79,800

Company”) would like to announce the operating results for the year ended December 31, 2018, which has been audited by an auditor as follows: Unit: Million Baht CONSOLIDATED FINANCIAL STATEMENTS For the

+/(-) Unit : million baht หน่วย : ลา้นบาท • ส าหรบัสินทรพัย์และหนีส้ินในไตรมาส 3/2562 เปลี่ยนแปลงลดลงจากไตรมาส 2/2562 ซึ่งเกิดจากการจ่าย ช าระหนีข้องบรษิัทฯ ตามปกติ จึงเรียนมาเพื่อทราบ ขอแสดงความนบัถือ ลงชื่อ

of 19% in sales volumes. The USD zinc price significantly increased by 36% to 2,598USD/ton in Q2 2017 from 1,915USD/ton in Q2 2016. However the Thai Baht against the US dollar appreciated with 3% from

for Q2/2017 ended June 30, 2017 of the Company and its subsidiaries, as shown below : (Unit : Million Baht) Q2/2017 Q2/2016 Change Revenue 222 210 12 Gross profit margin 80 83 (3) Expenses 20 20

Baht) Q3/2017 Q3/2016 Change Revenue 186 227 (41) Gross profit margin 62 89 (27) Selling Expenses 17 28 (11) Administrative Expenses 18 19 (1) Finance cost 5 5 - Net profit 19 28 (9) In overall, the

size of the transaction, the value is more than 3% of net tangible assets or more than 20 million baht. Thus the company has to disclose information regarding the transaction of the Company to the Stock

2017 ended December 31, 2017 of the Company and its subsidiaries, as shown below : (Unit : Million Baht) 2017 2016 Change Revenue 837 849 -1.4% Gross profit margin 293 342 -16.7% Selling Expenses 80 96

shown below: (Unit : Million Baht) 2017 2016 Change Revenue 837 849 -1.4% Gross profit margin 293 342 -14.3% Selling Expenses 80 96 -16.7% Doubtful debts from the voiding of contract 320 - 100.0% Finance

  at  the  ratio  20  percent  of  the  current  registered  capital  at  the  amount  of  THB  6,000,000  (Six million  baht).  As  the  above  transaction,  the  Company will  hold  EKI’s  ordinary