. 2Q17] [3Q17 VS. 3Q16] Sales Revenue 3,602.0 3,663.5 - 1.7 % 3,515.2 + 2.5 % Cost of Sales 2,519.0 2,528.2 2,251.0 Gross margin, (percentage) 30.07% 30.99% 35.96% Selling & Administration 485.1 484.6

, resulting in the increase of selling expenses comparing to 1H18 in which we did not have these expenditure. In addition, there are also expenses of sales promotion, booth exhibition, cost of samples, and

were reported in the amount of Baht 1,942.0 million which increased from the Q3/2018 by Baht 178.7 million or increased 10.1 percent which consisted of an increase in cost of hospital operations in the

% 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

% 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