Combined generation of electricity and steam from natural gas
BORALEX AND GAZ MÉTROPOLITAIN ARE CONSIDERING THE CONSTRUCTION OF A 214 MW COGENERATION PLANT IN THE TÉMISCAMINQUE REGION
Témiscaming, June 18, 2002 – Boralex and Gaz Métropolitain announced today that they are
considering the generation of 214 MW of electricity in a cogeneration plant to be built in the
Tembec industrial complex located at Témiscaming, Québec. This announcement stems from
the tender call recently addressed by Hydro-Québec to private electricity producers to meet the
government corporation’s future needs.
To meet the demand beyond its forecasted 2006-2007 production capacity, Hydro-Québec
chose to ask private producers to submit proposals for a total production of 1,200 MW. Against
this background, Boralex and Gaz Métropolitain concluded an exclusive agreement with
Tembec for the construction of facilities for the cogeneration of electricity and steam from
natural gas in Tembec’s Témiscaming industrial complex. Boralex and Gaz Métropolitain
recently submitted their tender to Hydro-Québec.
Frank A. Dottori, Tembec President and CEO, said that “if this project is accepted by Hydro-
Québec, Tembec would derive direct benefits from the cogeneration facilities as they would
enable our Témiscaming Site to improve its energy efficiency and reduce production costs of
the steam required for its manufacturing processes. We have been studying the combined
generation of electricity and steam from natural gas for a long time and we are convinced that
the Boralex and Gaz Métropolitain tender represents a sustainable development project from economic, environmental and social points of view.”
Tembec firmly believes that the Hydro-Québec approval of this electricity and steam
cogeneration project would contribute to the maintenance of the 1,100 jobs at its Témiscaming
industrial complex and provide the energy resources required for an eventual expansion, if not
to the region itself. It should also be noted that the proposed project would create permanent
jobs in the power plant in addition to temporary jobs during the new facilities’ construction
phase.
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Boralex
Boralex owns and operates 11 power stations from wood-residue, natural gas and
hydroelectricity in Quebec, the United States and in France. Also, Boralex Power Income Fund,
which is managed by Boralex and in which Boralex holds an important position, operates eight
power stations in Quebec from the same sources of fuel. Together, these two entities have
nearly 230 employees and have a total installed capacity of 350 MW. Boralex stock trades on
the Toronto Stock Exchange under the ticker symbol BLX.A and Boralex Power Income Fund
stock trades under the ticker symbol BPT.UN.

Gaz Métropolitain
With a sales volume of $2.1 billion and 1,200 employees, Gaz Métropolitain is a major energy
company in Québec and the third largest natural gas distributor in Canada. Gaz Métropolitain
supplies over 150,000 clients in 257 Québec municipalities, in addition to its activities in the
Northeast of the United States. Its underground pipelines extend over 8,500 kilometres.

Tembec
Tembec is an integrated Canadian forest products company principally involved in the production of wood products, market pulp and papers. The Company has sales of approximately $3.5 billion with over 50 manufacturing sites in the Canadian provinces of New Brunswick, Quebec, Ontario, Manitoba, Alberta and British Columbia, as well as in France and the United States. Tembec’s Common Shares are listed on the Toronto Stock Exchange under the symbol TBC. Additional information on Tembec is available on its web site at www.tembec.com

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Contacts: Tembec Boralex Gaz Métropolitain
Information:
Charles J. Gagnon
V. -P. Corporate Relations
(819) 627-4230

Carole Villeneuve
Dir. - Communications
Tel.: (514) 985-1353

Stéphane Bertrand
V. -P. – Communications
Tel.: (514) 598-3316

Paul Dottori
Corporate Director -
Engineering
Tel.: (819) 627-4313