Since its South Korea debut on 20 August, Samsung Pay has attracted more than 500,000 subscribers, building anticipation ahead of its launch in the US on 28 September.

According to Business Korea, the vendor is accelerating its rollout plans to international markets based on domestic demand. Previously, Samsung said it would launch in the UK, Spain and China but without supplying firm dates.

Mind you, details are still a little sketchy. Samsung Pay will be released in China “as early as the end of this year”. Afterwards, Samsung is planning to target Europe, with the UK and Spain as primary markets.

Also interesting,  Samsung is wooing China Unionpay, the country’s largest card issuer, as a partner. The Chinese giant would make a powerful ally in its home market. An official at the Chinese firm said it was “discussing the issue of connecting its service to Samsung Pay”.

In the US, its partners already include Visa and MasterCard among the credit card firms, as well as leading banks Bank of America and US Bank.