Jakarta. Eleven Chinese nationals could each face up to five years in jail and a fine of Rp 500 million ($38,000) for working illegally at a zircon mine in West Kalimantan.
The group, working for mining company Mega Permata Karya Sukses, was arrested on March 10 with the help of officials from the Singkawang immigration office, West Kalimantan Police said on Monday.
"They were working here but they were holding tourist visas only," Brig. Gen. Arief Sulistyanto, chief of the West Kalimantan Police, told news portal Detik.
The 11 were employed as engine operators, supervisors and financial managers at the mining company, which is located in Bengkayang district, police said.
Police said they are also questioning the owner of the mining company about employing illegal foreign workers.
Zircon is a gemstone found in mineral sand deposits and is commonly used in chemical and industrial manufacturing.