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What is RCEP, the world's largest free trade deal that is under way?

The Regional Comprehensive Economic Partnership (RCEP) is a free-trade agreement between the 10 Association of Southeast Asian Nations (Asean) members plus Australia, China, India, Japan, New Zealand and South Korea.

The deal took effect in Australia, Brunei, Cambodia, China, Japan, Laos, New Zealand, Thailand, Singapore and Vietnam on January 1.

South Korea will follow on February 1, but Indonesia, Malaysia, Myanmar and the Philippines have yet to ratify the deal.

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According to a report in The Manila Bulletin at the end of December, the Philippines missed the deadline to ratify RCEP as its Senate went into recess faced with stiff opposition by several groups, mostly agriculture and non-governmental organisations, that have strongly urged senators to reject the trade deal.

Indonesia, though, is set to ratify the deal in the early part of 2022.

It has been seeking parliamentary approval to ratify the agreement for months and chief economic minister Airlangga Hartarto said a parliamentary commission overseeing trade rules had approved the ratification and its endorsement will be brought to a wider parliamentary vote in the first quarter of 2022.

President Joko Widodo will sign off on the ratification after parliamentary approval, he added.

The 15-member RCEP - the world's largest free-trade agreement despite the absence of the United States - is Japan's first trade agreement involving both China and South Korea.

The RCEP covers nearly a third of the global population and about 30 per cent of its global gross domestic product, but this is expected to rise to 50 per cent by 2030, according to HSBC.

Tariffs on more than 65 per cent of trade in goods are expected to immediately reach zero under the regional agreement, and that figure is expected to rise to around 90 per cent over 20 years.

"The RCEP will promote trade and attract investments to all participants in Asean indeed. The entry into force of the agreement is of great significance for further promoting intra-region free trade," Bounleuth Luangpaseuth, vice-president of the Lao National Chamber of Commerce and Industry, told the Xinhua New Agency.

"RCEP will open a new chapter for regional economic and trade ties. It will also put Laos in the global spotlight."

A key benefit of the pact is its common "rules of origin" framework, as RCEP exporters will generally only need to source at least 40 per cent of inputs from within the bloc for their final goods to qualify for tariff preferences when exported to other members, explained Ajay Sharma, HSBC's regional head of global trade and receivables finance for Asia-Pacific.