Plaid Cymru says that the UK re-entering the single market would be the best way to address the spiraling cost of living crisis.
The party's leader, Adam Price, has called on First Minister Mark Drakeford to commit his government to the policy of single market membership – as previously adopted in the join Plaid Cymru and Welsh Government white paper, Securing Wales Future.
Mr Price said the Boris Johnson's UK Government were risking a trade war with the EU over the Northern Ireland protocol and stated that re-joining the single market would be a “very simple practical solution” to the economic challenges facing families throughout the United Kingdom.
Mr Price MS said: "Households and families across Wales and the UK are continuing to struggle with soaring energy and food costs. Barriers to trade and skills shortages are only set to make the cost-of-living crisis worse.
“If that wasn’t bad enough, the Tories in Westminster is now risking a trade war over the Northern Ireland protocol, which will not just plunge Northern Ireland into political uncertainty but also add further to the economic pain families are already experiencing throughout the United Kingdom.
“The cost of living crisis and the challenges we're facing in every sector of the economy and in every part of the UK bar London arguably has a very simple practical solution which is returning to the principle at the heart of 'Securing Wales's Future' the white paper Plaid Cymru and the Welsh Government jointly published, which is re-joining now the single market and the customs union."
Rejoining the single market would not require the UK, following a referendum, rejoining the European Union.
There are a number of non EU membership countries, including Switzerland and Norway, that have access to the single market and customs union through European Free Trade Association status.
