The provisions of Article XVIII shall not apply to suppliers and service providers of Japan, Korea and the US in contesting the award of contracts to a supplier or service provider of Parties other than those mentioned, which are small or medium sized enterprises as defined in Regulation 112(4) of the Public Contracts Regulations 2015, until such time as the United Kingdom accepts that they no longer operate discriminatory measures in favour of certain domestic small and minority businesses. The provisions of Article XVIII shall not apply to Japan and Korea in contesting that award of contracts by United Kingdom entities, whose value is less than the threshold applied for the same category of contracts awarded by these Parties.