A South Korean delegation greeted Harper on Monday as he stepped off his aircraft after a 20-plus hour trip from Ottawa.
There's no word yet on whether Harper plans to sign the final text of a free-trade deal with South Korea or is simply going to announce an agreement-in-principle in a staged photo-op.
A free-trade agreement with South Korea — which Harper says is a gateway to deals with other Asian countries — has been a decade in the making.
One major sticking point is the auto sector, with Canada having a 6.1 per cent tariff on car imports.
Critics fear that if it is removed, the Canadian market would be flooded with Korean-made brands such as Hyundai and Kia.