C2 – Ethylene
C3 – Propylene
SM – Styrene Monomer


Derivative from the crude oil refining process, which is then typically passed through a (Steam) Cracker to produce various feedstocks including C2 and C3.

Force Majeure (non-legal definition)

Since accepting an order circumstances outside of the supplier’s control, and which could not have been foreseen, now prevent the supplier from fulfilling the contract either in part or in full. By declaring Force Majeure the contract is to supply is cancelled.