It's set to get easier for New Zealand businesses trading in South East Asia, as the Prime Minister's in Malaysia to finalise a regional deal.

Chris Luxon is in Kuala Lumpur for the ASEAN summit and will finalise a Comprehensive Strategic Partnership with the association.

ASEAN has 11 member countries such as Malaysia, Thailand, Singapore and Laos.

Trade Minister Todd McClay told Mike Hosking that it can be difficult for kiwi businesses to deal in South East Asia, with often complex and prohibitive rules.

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