BANGKOK, May 20 (TNA) - A subsidiary of PTT Public Company Limited (PTT), Thailand's largest petroleum firm, is speedily studying an initiative to expand its "green investment" in the country.

BANGKOK, May 20 (TNA) - A subsidiary of PTT Public Company Limited (PTT), Thailand's largest petroleum firm, is speedily studying an initiative to expand its "green investment" in the country.

BANGKOK, May 20 (TNA) - A subsidiary of PTT Public Company Limited (PTT), Thailand's largest petroleum firm, is planning a promising petrochemical project in Vietnam.

BANGKOK, May 20 (TNA) - A subsidiary of PTT Public Company Limited (PTT), Thailand's largest petroleum firm, is planning a promising petrochemical project in Vietnam.

BANGKOK, May 20 (TNA) - A subsidiary of PTT Public Company Limited (PTT), Thailand's largest petroleum firm, is planning a promising petrochemical project in Vietnam.

BANGKOK, May 20 (TNA) - A subsidiary of PTT Public Company Limited (PTT), Thailand's largest petroleum firm, is planning a promising petrochemical project in Vietnam.

BANGKOK, May 20 (TNA) - The National Economic and Social Development Board (NESDB) has revised its projection on Thailand's gross domestic product (GDP) growth rate for this year downward to 4.2-5.

BANGKOK, May 20 (TNA) - The National Economic and Social Development Board (NESDB) has revised its projection on Thailand's gross domestic product (GDP) growth rate for this year downward to 4.2-5.

BANGKOK, May 20 (TNA) - The National Economic and Social Development Board (NESDB) has revised its projection on Thailand's gross domestic product (GDP) growth rate for this year downward to 4.2-5.

CHIANG MAI, May 20 (TNA) - Prime Minister Yingluck Shinawatra opened on Monday morning the national leaders' session as part of the 2nd Asia-Pacific Water Summit, being held in Chiang Mai Province