"Traders are currently required to source all their stocks from WGN Scan Sdn Bhd and any purchases made from another dealer must be declared with a 1.5 per cent charge per item, The Malaysian Reserve reported.

Traders who fail to do so are required to pay a RM500 summons, the paper added."

If the single sourcing is cheaper, why would traders buy externally? And summon should not even be there in the first place

ASTRO is different case. They invested in satellite and infrastructure. And monopoly is not lifetime.
The monopoly has expired long time ago.