About us

P. Chemitech is a well-recognized leader as importer, formulator, and distributor of agrochemical products in Thailand, with the famous
trademark  "Red Dog", representing highly strong brand for 46 years.


P. Chemitech has a factory, under subsidiary company, Thai Herbicide Company Limited. We are the  first manufacturer of Glyphosate and 2,4-D Amine in Thailand. To date, the company has been awarded ISO 9001:2008 certification since 2008. (Originally ISO 9001:2000 since 2000.)

1970      P. Chemisongsermkaset Company Limited founded by Ek “POR” Lertdetdecha.

1974      First formulation plant in Nonthaburi province.

1986     The sale of 2,4-D Na. salt (herbicide) exceeded 1 million kg.

1993     Changed the company name to "P. Chemitech Company Limited"  and launched the twin-pack herbicide
               the first time in Thailand.

1994      Established manufacture under name Thai Herbicide Company Limited at Bangpoo Industrial Estate,
               Samutprakarn province.

1997      Established Standard Laboratory for agrochemical.

1999      Red Dog Club established for retail partnership throughout the nation with 1200 members.
               (now 2000 members)

2000      Awarded ISO 9001 : 2000 certification.

2002      Established the Research and Development Center at Nakhonpathom province.

2004      Became the first Glyphosate manufacturer in Thailand.

2007      Established the first 2,4-D Amine plant in Thailand.