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

Baht against USD. The USD zinc price increased to 2,962USD/ton in Q3 2017 from 2,253USD/ton in Q3 2016. Thai Baht appreciated against the US dollar by 4% from 35.01 THB/USD in Q3 2016 to 33.55 THB/USD in

despite a sharp increase in LME zinc price. The USD zinc price increased by 23% from 2,781USD/ton in Q1 2017 to 3,422USD/ton in Q1 2018. Thai Baht appreciated against the US dollar by 10% from 35.29 THB/USD

members of The Stock Exchange of Thailand and those interested to be informed accordingly would be appreciated. Yours faithfully, -Signature- (Mr. Pongsak Thiengviboonvong) Managing director

accordingly would be appreciated. Yours faithfully, -Signature- (Mr. Pongsak Thiengviboonvong) Managing director

near future. For the impact on Thailand, The Baht appreciation is greatly appreciated. Compared to other currencies, as a result, the competitiveness of Thailand on the world stage has decreased

to last year. For your consideration to the members of The Stock Exchange of Thailand and those interested to be informed accordingly would be appreciated. Yours faithfully - Signature - (Mr. Pongsak

2019 decreased comparing to last year. For your consideration to the members of The Stock Exchange of Thailand and those interested to be informed accordingly would be appreciated. Yours faithfully

comparing to last year. For your consideration to the members of The Stock Exchange of Thailand and those interested to be informed accordingly would be appreciated. Yours faithfulkly, -Signature- (Mr

informed accordingly would be appreciated. Yours faithfulkly, -Signature- (Mr. Pongsak Thiengviboonvong) Managing director