1979

E.S.T. TRAD­ING CO., LTD. was founded in Bangkok, Thai­land to offer indoor air qual­ity (IAQ) prod­ucts and wide range of HVAC equip­ments.

1998

Entered clean room con­tract­ing busi­ness

2001

Started licensed pro­duc­tion of “Micro Air” elec­tro­sta­tic pre­cip­i­ta­tor air clean­ers tech­nol­ogy from Metal-​Fab Inc. (USA) to fur­ther expand our com­mer­cial line.

2002

Devel­oped par­tic­u­late and odor con­trol prod­ucts under the brand “HIEND” with our accu­mu­lated expe­ri­ence and knowl­edge.

2005

Started pro­vid­ing air puri­fier rental, instal­la­tion and main­te­nance ser­vices with war­ranty options for pri­vate and pub­lic sec­tors across Thai­land and abroad.

2012

Intro­duced “CURA” air puri­fier with ger­mi­ci­cal tech­nol­ogy for health­care and com­mer­cial mar­kets

Today

We con­tinue to col­lab­o­rate with experts around the world to improve per­for­mance,
Reli­a­bil­ity and dura­bil­ity of our prod­ucts to bet­ter serve our cus­tomers.