Samsung is partnering with Puerto Rico’s largest bank, Banco Popular, and four of its largest operators – AT&T, T-Mobile, Sprint and Claro – to offer its payment service.

Subscribers from the operators can add eligible cards from the bank to the Samsung Pay wallet on high end smartphones from the South Korean vendor.

Puerto Rico is a small addition to a busy recent rollout schedule for Samsung Pay, following launches in Spain, Singapore and Australia. It is already available in South Korea, US and China.

The company has more countries pencilled in for launch later this year, including UK, Brazil and Canada. Puerto Rico has not been previously mentioned in the roadmap.

According to GSMA Intelligence, the four operators have combined mobile connections of about 3 million from a total base in Puerto Rico of 3.4 million.

Banco Popular is a market leader, with rivals including Banco de San Juan and Banco Mercantil de Puerto Rico, as well as banks from the US and elsewhere.