Commonwealth Bank Indonesia, a subsidiary of Commonwealth Bank of Australia, is tapping into growing mobile banking market in the country, benefiting the increasing number of middle-class people in the largest economy in Southeast Asia.

“Up to 80 percent of [the Indonesian] population is less than 40 years old, 35 percent of whom use social media. If you look at the way people interact and travel in Indonesia, mobile is the key part of that,” Commonwealth Bank director of retail and business banking, Ian Phillip Whitehead, said in Singapore on Friday

“Indonesia is the biggest users of BlackBerry [smartphone] outside Canada and the world’s top users of Facebook and Twitter. That segment is very crucial,” he added.

Since the bank launched its mobile banking services in Indonesia in June 2011, out of 150,000 customers, 20,000 customers have downloaded Commonwealth Bank mobile banking applications, which are available in BlackBerry and iPhone platforms.