1985: Drummond Ltd. was founded and acquired its first Colombian Coal Concession, which eventually became Pribbenow Mine.

1993-1995: Drummond Ltd. expanded operations into Colombia and began construction of a mine and port. The first international coal production occurred in 1995.

1997: Drummond Ltd. acquired El Descanso mining concession, which included more than 1.7 billion tons of reserves.

2003: Drummond Ltd. acquired 3 new coal areas in Colombia: Rincon Hondo, Similoa, and Cerrolargo. (Total reserves acquired that year: 162 MM tons)

2004-2005: Drummond Ltd. entered into Coal Bed Methane exploration in the Cesar basin: La Loma Contract and acquired the rights for Coal Bed Methane in association with Ecopetrol to explore the Guajira Block: Rio Rancheria.

2009: Drummond Ltd. initiated the production phase for El Descanso Block.

2011: ITOCHU Corporation became a 20% partner in Drummond Ltd.’s Colombian operations.

2014: On March 31, 2014 Drummond carried out its first shipment of coal using the direct ship loading system. With two shiploaders, Puerto Drummond now has an installed capacity of 60 million tons per year.

2016: On July 13, 2016 Garry Neil Drummond passed away. Mr. Drummond was Chairman and Chief Executive Officer of Drummond Company for over 40 years and was considered an iconic leader and entrepreneur in the coal and mining industry in the United States and South America.

2019: On November 1, 2019 Richard Mullen is named the the new Chief Executive Officer of the company. Mr. Mullen was previously the President of Mining.

2021: On February 4, 2021 Itochu Coal Americas, Inc. agrees to terms to transfer its 20% member interest in Drummond International, LLC to Drummond Company, Inc. This transaction continues to demonstrate Drummond's long-term commitment to operating in Colombia and providing high-quality low-sulfur coal to our customers throughout the world.