ECSA and SAIChE are two separate organisations.

SAIChE is an ECSA recognised Voluntary Association (VA), Category A.  No. VA A005 (2018-2023)
Therefor SAIChE members receive a discount from ECSA.
SAIChE is also an ECSA CPD Licenced Body: LB_029/2023 South African Institution of Chemical Engineers SAIChE.
As a result, SAIChE may accredit courses for CPD credits.

ECSA website: https://www.ecsa.co.za

Pr.Eng – Please apply via the ECSA website
ECSA registration process

ECSA current Code Of Conduct

Code of Practice for the Performance of Engineering Work