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By Nivedita Balu

Oct 28 (Reuters) - Canada's main stock index closed

higher on Tuesday, boosted by a robust technology and material

shares rally, while investors awaited pivotal central bank

decisions.

Toronto's S&P/TSX composite index closed up 143.92

points, or 0.48%, at 30,419.68.

The technology sector rose 1.6%, helped by gains

in Celestica ( CLS ), which jumped 7.3% after raising its 2025

revenue forecast, and an 8% rise in Dye & Durham ( DYNDF ), which

late on Monday said the sale of its unit Credas is expected to

close by January to help with debt reduction.

The biggest winner was Cameco ( CCJ ), which jumped 22.9% after

the announcement that the uranium supplier Westinghouse Electric

and Brookfield Asset Management ( BAM ) will build at least $80

billion of new nuclear reactors across the United States in a

partnership with the U.S. government.

The materials sector rose 0.8%, led by gains in

Hudbay minerals and Discovery Silver ( DSVSF ).

Energy shares fell 1.1% decline as oil prices

tumbled nearly 2%. Investors continue weighing the implications

of U.S. sanctions on Russia's two largest oil companies against

potential OPEC+ production increases.

Global investors are optimistic that U.S. President Donald Trump

will strike a long-awaited trade deal with China during his Asia

tour. Trump has signed a deal with Japan to mine and process

critical minerals and rare earths.

"There is some optimism more globally, not necessarily in

Canada, that some of the trade tensions are easing," said Angelo

Kourkafas, a senior global investment strategist at Edward

Jones.

For Canada, however, trade relations deteriorated last week when

Trump announced an additional 10% tariff on Canadian imports,

citing what he called a misleading tariff-related advertisement.

Investors will also focus on central bank policy decisions

scheduled on Wednesday, with both the Bank of Canada and the

U.S. Federal Reserve widely expected to implement a

quarter-point interest rate cut.

"The focus is going to be on the trade front and the impact

on the economic health within the labor market for Canada,"

Kourkafas said.