The Company was incorporated in 1956 creating a milestone in the healthcare industry by setting up the first pharmaceutical and veterinary products manufacturing facility in the country. The Company operated under the following names resulting from change in ownership of the majority shareholding:-
- 1956 to 1958 - Dumex Limited - Ceylon
- 1958 to 1963 - Pfizer Dumex Limited - Ceylon
- 1963 to 1993 - Pfizer Limited - Sri Lanka
- 1993 to date - Astron Limited
In 1993 the Company created history in the corporate sector in Sri Lanka by carrying out the first leveraged management buyout of a Company.