- 1942
- Uniroyal is member company of WWII synthetic rubber program.
- 1954
- Production of Paracril NBR with Standard Oil of New Jersey (Esso) in Baton Rouge, La.
- 1964
- Start up of NBR production in Painesville Ohio Uniroyal plant. Shut down of Baton Rouge production line
- 1967
- Pemex JV Polysar. Capacity 45 KTA SBR.
- 1971
- NBR Production starts (Polysar Technology).
- 1986
- Polysar leaves JV.
- 1988
- Company becomes private. Capacity 72 KTA.
- 1990
- Acquisition by KUO Group.e
- 1994
- Production of Uniroyal NBR at Insa Altamira in a toll production agreement.
- 1995
- KUO Group and UCC form JV.
- 1999
- KUO/UCC Capacity Increase to 120 KTA. Closure of Uniroyal plant in Painesville, Ohio.
- 2001
- Sale of all NBR assets and "know how" from Uniroyal to INSA.
- 2012
- INSA – GPRO form joint venture company: IGSR
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