History and Business Overview Thai Polycons Public Company Limited or “TPOLY” was incorporated on December 26, 1988 with a registered capital of Baht one million by a group of engineers, led by Mr. Charoen Chanpalangsri who has gained vast experience in engineering, for the operation of construction business. The founders of TPOLY have envisioned the growing demand of engineering service, which is a substantial factor supporting the national economic growth. TPOLY was converted into a public limited company on March 24, 2008 and listed on the Stock Exchange of Thailand on March 24, 2009. The main business of the Company is the construction service. Since the Company’s incorporation, its business has gradually been expanding and TPOLY has made a large amount of investment in other businesses in its subsidiaries, including property, trading and power, and also in other companies in the form of joint venture. Therefore, the Company’s registered capital has been gradually increased. As of December 31, 2018, the registered capital of TPOLY was Baht 692,868,493 in total (Baht six hundred and ninety-two million, eight hundred and sixty-eight thousand, four hundred and ninety-three) with the paid-up capital of Baht 572,759,484 (Baht Five hundred and seventy two million, seven hundred fifty nine thousand, four hundred and eighty four baht only). The major shareholders are Chanpalangsri family and executive officers of TPOLY. The main business operation of the Company is still an integrated construction service provided to the government agencies and private sector. The construction service starts from the preparation step, pile works, foundation works, soil collapse prevention works, structural works, architectural works, landscape architectural works, and system engineering works, up to the construction completion. The Company is awarded for each construction project in line with the right and proper procedure, price proposal steps and methods, and bidding timeframe. When the Company wins a bid, the construction price and conditions would be negotiated until they all are mutually agreed by all related parties before engaging the Company to provide the construction service finally. For construction labors of the Company, some of them are the daily labors, and some are employed by some small contractors that are registered with the Company rightly according to the qualification criteria required by the Company.