Check the recognised overseas pension schemes notification list.
HMRC maintains a notification list of overseas pension schemes that have confirmed they meet the requirements to be recognised as a Recognised Overseas Pension Scheme (ROPS). Small-business owners making pension contributions for employees to overseas schemes should check this list to confirm the scheme is included. HMRC updates this list on the 1st and 15th of each month, though they do not guarantee that listed schemes are valid or that transfers will be free of UK tax.
Source: https://www.gov.uk/guidance/check-the-recognised-overseas-pension-schemes-notification-list. Summarised automatically from the official source — general information, not advice.