NORTH ZONE
In December 1976, an Association Contract was signed between Carbocol S.A., a state owned Coal Company, and Intercor, an ExxonMobil affiliate, for the development of Cerrejón North Zone. This contract consists of three phases: Exploration (1977-1980), Construction (1981-1986) and Production (1986-2009). In January of 1999, an agreement with the Government of Colombia extended this phase an additional 25 years more, until 2034.
In November of 2000, the Colombian Government sold Carbocol S.A. (50%) participation in Cerrejón North Zone Association Contract, to a consortium, whose members were subsidiaries of BHP Billiton plc, Anglo American plc and Glencore International AG. Later on Glencore sold its participation to Xstrata plc.
In February of 2002, this consortium acquired from Intercor the other 50%, owned by ExxonMobil, thus becoming the sole owner of the Cerrejón north zone.
In November of 2002, the merger between Intercor and Carbones del Cerrejón S.A was legalized and Intercor's name was changed today Carbones del Cerrejón Limited, Cerrejón.
CENTRAL ZONE
This zone has two contracted areas::
Central Deposit (Comunidad de El Cerrejón) in production since 1981. After successive contracts with different companies (Domi Prodeco Auxini consortium, Prodeco, Carbones del Caribe and others), it was acquired by Glencore in 1995, thus creating Carbones del Cerrejón S.A. Then, in 1997, Anglo American joined the business and in 2000, BHP Billiton became the third associate.
Oreganal Deposit (State owned), initially contracted between Carbones del Caribe and Colombian state (today Minercol), then in 1995 with Oreganal S.A. who in turn assigned its participation to Carbones del Cerrejón.
PATILLA AREA
In 2001, through a public bid, this area was assigned to a consortium, whose members are today Carbones del Cerrejón Limited (former Intercor) and Cerrejón Zona Norte S.A., that also belong to subsidiary companies of BHP Billiton plc, Anglo American plc and Xstrata plc.
SOUTH ZONE
Through a bid in 1997, an exploration and exploitation contract of this zone was assigned to a consortium integrated today by subsidiary companies of BHP Billiton plc, Anglo American plc and Xstrata plc. Currently, this zone is at exploration stage.
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