| May 1985 | Pascal Trading Co., Ltd was found. Sales of tools and measuring instruments for die-casting machine started. Non-life insurance agency business started. | 
|---|---|
| Apr. 1993 | Sales of Total Operation Monitor System (TOMS) started. | 
| Apr. 1995 | Sales of Blister Test Equipment started. | 
| Apr. 1996 | Sales of Die Cooling Equipment, Jet Cool System (JECSS), Jet Cooler started. Sales of Injection Monitor System (IM-12) started. | 
| Feb. 2002 | Sales of Jet Cool System T-Series (JECSS-T) started. | 
| Jun. 2002 | Machine and Tool Development Division of Ahresty Corporation was transferred to Pascal Trading. | 
| Oct. 2003 | Department for sales of used die-casting machine was established. | 
| Jul. 2004 | Sales of used Die Casting Machine started. Oversea sales department was established. Leasing business started. | 
| Apr. 2005 | Headquarter was transferred to Minato-ku, Tokyo. | 
| Jul. 2005 | Company name changed to Ahresty Techno Service Corporation. | 
| Oct. 2005 | Sales of Water Flow Detector, Flow Watcher and Water Flow Indicator started. | 
| Mar. 2006 | Fukuoka Center was established. | 
| Nov. 2006 | Sales of Jet Cool System M-Series (JECSS-M) started | 
| Feb. 2007 | ISO9001 certification was achieved. | 
| Dec. 2007 | Non-life insurance agency and leasing business are closed. | 
| Jan. 2008 | Ahresty Techno Service Corp., CS Fuso Corp. and Tenryu Metal Industry Corp. were merged as Ahresty Techno Service Corporation. | 
| Feb. 2008 | Headquarter was transferred from Minato-ku, Tokyo to Nakano-ku, Tokyo. | 
| Jan. 2010 | Osaka Center was closed and put together with Hamamatsu Center Fukuoka Center was transferred to Kumamoto and renamed as Kumamoto sales office. | 
| Apr. 2010 | Headquarter was transferred from Nakano-ku, Tokyo to Hamamatsu-shi, Shizuoka. | 
| Nov. 2014 | Sales of Jet Cool System C-Series (JECSS-C) started | 
| Nov. 2018 | Sales of Water Flow Meter, Flow Meter and regarding products started. |