(Auto 11 Lines) Fax: +66(0)2-192-3744 Page 1 of 1 -Translation- No. ED-MD18-009 10th May 2018 Subject : Clarification of changes in excess of 20% in the operating results for year Q1/2018 To : Director

(Auto 11 Lines) Fax: +66(0)2-192-3744 Page 1 of 1 -Translation- No. ED-MD19-007 14th May 2019 Subject : Clarification of changes in excess of 20% in the operating results for year Q1/2019 To : Director

(Auto 11 Lines) Fax: +66(0)2-192-3744 Page 1 of 1 -Translation- No. ED-MD17-033 13 th November 2017 Subject: Clarification of changes in excess of 20% in the operating results for Q3/2017 To : Director

(Auto 11 Lines) Fax: +66(0)2-192-3744 Page 1 of 1 -Translation- No. ED-MD18-004 26th February 2018 Subject : Clarification of changes in excess of 20% in the operating results for year ended 2017 To

(Auto 11 Lines) Fax: +66(0)2-192-3744 Page 1 of 1 -Translation- No. ED-MD18-014 14th August 2018 Subject : Clarification of changes in excess of 20% in the operating results for year Q2/2018 To : Director

(Auto 11 Lines) Fax: +66(0)2-192-3744 Page 1 of 1 -Translation- No. ED-MD18-019 12th November 2018 Subject : Clarification of changes in excess of 20% in the operating results for year Q3/2018 To

5.9% Q-o-Q, but a reduction of 0.6% Y-o-Y. Total Sales revenue in USD terms grew by 5.8% Q-o-Q and 7.6% Y-o-Y, while PCB shipment value raised 6.55% Q-o-Q and 9.89% Y-o-Y (Table 5). The Y-o-Y Sales

in capacity utilization of Phase 3 at the new plant, but sales dropped in the following 2H18 (Table 4, PCB shipment value dropped 13% Q-o-Q in 4Q18) due to the typical low season and the effect of the

(Auto 11 Lines) Fax: +66(0)2-192-3744 Page 1 of 2 -Translation- No. ED-MD19-002 28th February 2019 Subject : Clarification of changes in excess of 20% in the operating results for year ended 2018 To

previous year at 171.0 million baht in revenue from sales, or 5.78 percent. The increase in sales figures was revenue from the sale of moulds scheduled for delivery within the third quarter. In 2017, the