Stock Exchange of Thailand Enclosure: 1. Information Memorandum Re: Acquisition of Assets of T.K.S. Technologies Public Company Limited (Schedule 1) 2. Information Memorandum Re: the Allocation of the

and the Notification of the Board of Governors of the Stock Exchange of Thailand Re: Disclosure of Information and Other Acts of Listed Companies Concerning the Acquisition and Disposition of Assets B.E

1 --Translation-- Sor Gor 7/2018 January 19, 2018 Subject: Management Discussion and Analysis for the year ended December 31, 2017 (Unaudited) To: The President The Stock Exchange of Thailand

1 --Translation-- Sor Gor 11/2018 February 22, 2018 Subject: Management Discussion and Analysis for the year ended December 31, 2017 (Audited) To: The President The Stock Exchange of Thailand

44.18 136.50 161.68 143.00 82.42 A/R Net 450.42 286.74 337.74 280.62 231.72 Inventories 101.21 168.76 113.46 246.33 114.52 Current Assets 605.35 593.66 626.00 673.42 440.17 PP&E Net 926.90 834.73 904.14

Consolidate Consolidate Consolidate Cash And Cash Equivalents 149.85 432.36 102.63 66.34 219.18 A/R Net 136.74 135.26 134.52 131.14 171.16 Inventories 48.79 37.24 39.26 31.26 37.37 Current Assets 1,040.04

Inventories 21.80 18.29 0.20 22.15 - Current Assets 485.59 186.19 212.98 306.65 177.86 PP&E Net 5.61 128.59 112.42 140.31 97.27 Non-Current Assets 338.69 766.99 737.97 740.89 513.27 Total Assets 824.27 953.18

549.89 Inventories 187.70 215.46 203.84 198.41 184.98 Current Assets 2,828.72 2,296.92 2,531.03 2,578.36 2,112.69 PP&E Net 773.68 772.22 784.51 790.64 924.35 Non-Current Assets 1,471.64 1,446.34 1,384.12

Equivalents 36.07 140.35 50.88 3.15 49.82 A/R Net 37.55 13.98 22.20 15.16 25.72 Inventories 1,180.50 1,047.17 1,243.31 2,249.97 2,138.70 Current Assets 1,364.09 1,201.50 1,424.85 2,268.27 2,214.87 PP&E Net

Consolidate Consolidate Cash And Cash Equivalents 28.12 29.49 45.24 13.95 17.06 A/R Net 546.57 527.62 478.68 471.67 315.22 Inventories 171.36 146.20 152.25 125.97 116.98 Current Assets 755.85 710.54 685.24