Are any suppliers exempt from this?

Small suppliers (defined by reference to certain financial indicators) are temporarily exempt from these new restrictions until 30th March 2021 in order to account for the difficulties to small suppliers during the Covid-19 pandemic.

There are also certain industries that are exempt from these restrictions (for example financial services).  The Secretary of State may also create further exemptions framed by reference to kinds of company, supplier, contract, goods or services or in any other way.