Is it good/ worth the effort to become an Ir / professional engineer(manufacturing field) in Malaysia? What position can they hold inside a manufacturing plant?(Manager etc) Any opinion/advice regarding this (Ir) are welcome.

Will the IR status expired after a certain period? Meaning have to retake the examination again to obtain the status. Also, is it wise to go for chartered eng instead of IR (meaning is it really worth the effort? I know chartered eng exam is alot more toughter but higher status)