JAKARTA (Yosefardi) – Heavy equipment, mining contractor, and coal producer United Tractors (UNTR) dropped 4.23% to Rp15850 Tuesday (June 11) morning, the lowest level in three years.

UNTR, subsidiary of Astra International, fell to as low as Rp15750 with 2.7 million shares exchanged hands.

The company is parent of Pamapersada Nusantara, one of the largest coal mining contractors in Indonesia. Delta Dunia, parent of coal mining contractor BUMA, also dropped 5.62% this morning.

Samindo Resources and Petrosea, both are contractors of third largest coal producer Kideco Jaya Agung, declined further by 2.94% and 4.07% respectively in the morning session.