% 19% PCBA (Cambodia) 0% 0% 0% 0% 0% IC (Ayutthaya, Thailand) 34% 34% 34% 36% 35% IC (Jiaxing, China) 5% 5% 5% 5% 5% HMT (Ohio, USA) 7% 5% 5% 5% 4% 100% 100% 100% 100% 100% Gross Profit / Cost of Sales

% 18% 18% PCBA (Cambodia) 0% 0% 0% 0% 0% IC (Ayutthaya, Thailand) 37% 33% 34% 34% 36% IC (Jiaxing, China) 7% 6% 5% 5% 5% HMT (Ohio, USA) 4% 5% 5% 5% 5% 100% 100% 100% 100% 100% Gross Profit / Cost of

(Ayutthaya, Thailand) 33% 34% 35% 34% 31% IC (Jiaxing, China) 4% 4% 6% 5% 6% HTI (Ohio, USA) 4% 5% 5% 4% 4% 100% 100% 100% 100% 100% Gross Profit / Cost of Sales Analysis and Sales and Administration Analysis

% 34% IC (Jiaxing, China) 5% 4% 4% 6% 5% HTI (Ohio, USA) 5% 4% 5% 5% 4% 100% 100% 100% 100% 100% Gross Profit / Cost of Sales Analysis and Sales and Administration Analysis The Gross Profit margin was 1

% Gross Profit / Cost of Sales Analysis and Sales and Administration Analysis The Gross Profit margin was 5 percentage points lower at 11% in Q118 down from Q117 at 16% due to stronger THB/USD exchange rate

% HMT (Ohio, USA) 4% 4% 5% 4% 5% 100% 100% 100% 100% 100% Gross Profit / Cost of Sales Analysis and Sales and Administration Analysis The Gross Profit margin was 1 percentage points lower at 14% in Q218

Profit / Cost of Sales Analysis and Sales and Administration Analysis The Gross Profit margin was 6 percentage points lower at 12% in Q319 down from Q318 at 18% due to reduced economies of scale from lower

% 4% 100% 100% 100% 100% 100% Gross Profit / Cost of Sales Analysis and Sales and Administration Analysis The Gross Profit margin was 7 percentage points higher at 15% in Q120 up from Q119 at 8% due to

amount of Baht 164.52 million. This cost of the construction project is still in line with the Company's estimation. For other projects are still normal. 3. The total administrative expense decreases in

737.23 576.73 Cost 551.44 458.12 Gross profit 185.79 118.61 Gross profit margin 25.20% 20.57% 6. In the second quarter of 2017, details of share of profit from investment in associates compared to the