Cambior Inc.

Cambior Inc.

May 16, 2006 10:53 ET

Cambior Inc.: Rosebel's Operations Suspended by an Illegal Work Stoppage

LONGUEUIL, QUEBEC--(CCNMatthews - May 16, 2006) - On Sunday, May 14, 2006, a significant number of employees of Rosebel Gold Mines N.V. ("Rosebel"), a subsidiary of Cambior Cambior (TSX:CBJ)(AMEX:CBJ) is based in Suriname, were led into an illegal work stoppage by a non-official union representative. This work stoppage forced Rosebel to suspend all activities at its Rosebel mine. There is to date no official union accredited by the government of Suriname to represent Rosebel's group of workers. Rosebel's employees have yet to table demands to Rosebel management. Consequently, Rosebel management has requested all of its employees to cease this illegal work stoppage and to promptly return to work. Necessary steps are being taken by management to restore communication with employees and to restore the regular production as quickly as possible. Rosebel has requested assistance from the government with respect to the clarification of workers representation at the Rosebel mine and is taking steps to seek an injunction to cease the illegal occupation of Rosebel's facilities.

Further details will be released and communicated as they come available.

Cambior Inc. is an international gold producer with operations, development projects and exploration activities throughout the Americas. Cambior's shares trade on the Toronto (TSX) and American (AMEX) stock exchanges under the symbol "CBJ". Cambior's warrants "CBJ.WT.C" and "CBJ.WT.D" trade on the TSX.

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