NEC ECC: Quality Management 40.2

I have a NEC4 ECC contract and the contractor has not provided a Quality Management Plan. As the PM what can be done about this please?

Not sure if it would be wise to do this just because the Contractor has no Quality Management plan, but certainly would think it is justified if the Contractor is doing poor quality work (partly) as a result :

Instruct the Contractor to stop work. This is a compensation event, but it would arise from the fault of the Contractor so would have zero effect on the Prices.

BUT before you do this, notify an early warning to discuss concerns and make Contractor aware of potential consequences.