Coffee lovers must know Dunia Kopi at Pasar Santa. This coffee shop is simple yet special. The aroma of coffee wafts from the basement floor of Pasar Santa, South Jakarta. The 'Dunia Kopi' sign stands prominently in the middle of the building. Rows of coffee jars with a capacity of 5 kg are neatly arranged in the display case. Little did anyone know that Suradi, the owner of Dunia Kopi, is actually one of the JakOne Mobile users. Suradi, the owner of Dunia Kopi at Pasar Santa, South Jakarta, was conducting a Real Time Online (RTOL) transaction on the JakOne Mobile app together with his friend, Herfan, an entrepreneur behind Sareeng Kopi. Suradi then moved to an empty chair and gave a thumbs up. "Successfully sent," he told Herfan on Thursday, May 8, 2025. Suradi has two accounts at the DKI Provincial Government's BUMD. He is a priority customer. He recounts how he first came to know Bank DKI. It started in 2021 when the bank provided financing assistance to hundreds of traders at Pasar Santa and conducted digital training related to payments using QRIS. "We were all taught to use the Cash Management System (CMS) for payments. I became one of the role models for that system," he said. Bank Jakarta did indeed launch the SIAP QRIS program at the market in 2021. There are 463 traders who hold accounts at Bank Jakarta. Of that number, 374 kiosks make Market Management Fee payments using auto-debit through CMS or JakOne Bills Bank Jakarta. For that reason, Suradi remains loyal to Bank Jakarta as one of his financial partners. Dunia Kopi at Pasar Santa — also known as Santa Modern Market — occupies around 15 kiosks spread across several aisles. He also purchased the rooftop area, which he converted into a coffee roasting space equipped with large machines. "All the machines run 12 hours every day, never a day off," he said. The types of coffee sold vary widely, sourced from various regions across Indonesia — Gayo Coffee, Mandailing Coffee, Excelsa Coffee from Jambi, Ciwidey Coffee, Bajawa Coffee, Wamena Coffee, and many more. Prices per kilogram range from around IDR 200,000 for the cheapest to millions of rupiah. Luwak Coffee, for example, is priced at IDR 500,000 per kilogram. In a single day, 1 ton of coffee beans is sold to customers, which gives a sense of the impressive turnover he generates. His business, which has expanded like a puffer fish, started from a single kiosk in 2000 with the help of People's Business Credit (KUR) from several banks. In a short time, Dunia Kopi's profits multiplied. "By 2004 I was already able to buy a house. A year later I bought a car," said Suradi. As a gesture of gratitude to customers and to introduce the pleasure of brewed black beans, he provides free coffee at one of his kiosks. Every day, an estimated more than 100 people come by. They are free to choose whatever variety they like — Americano, cappuccino, V60, latte, palm sugar coffee, or traditional brewed coffee. "My intention is to make everyone, especially young people, become coffee lovers, because our country is rich in coffee. This is one way to make Indonesian coffee more globally recognized, in line with the name Dunia Kopi (World of Coffee), right?" he said with a laugh.