* TSX ends down 0.7% at 33,584.34

* Tech stocks fall, with Celestica ( CLS ) down 14.5%

* Materials group loses 3.8% as gold falls

* Energy adds 2% as oil settles 3.7% higher

(Updates at market close, adds file photos)

By Tharuniyaa Lakshmi and Fergal Smith

April 28 (Reuters) - Canada's main stock index fell on

Tuesday for a fourth straight day as declines for technology and

metal mining shares offset gains for energy.

The Toronto Stock Exchange's S&P/TSX composite index

ended down 233.85 points, or 0.7%, at 33,584.34,

marking its lowest closing level since April 19. It was the

fourth straight day of declines for the index, which is the

longest daily losing streak since December.

U.S. stocks also fell after a report that said OpenAI had

missed its internal revenue target raised fresh concerns about

the AI spending spree.

"The market has put the war in the Middle East on the back

burner, and a lot of what we're seeing is really on the back of

technology and earnings," said Allan Small, senior investment

advisor at Allan Small Financial Group with iA Private Wealth.

Shares of electronic equipment firm Celestica Inc ( CLS )

dropped 14.5% after the company reported quarterly results,

contributing to a 4.3% decline for the technology sector

.

The materials group, which includes metal mining

shares, was down 3.8% as the price of gold fell to a near

four-week low.

Barrick Mining ( B ) named Wessel Hamman as chief financial

officer of the new company that will hold its North American

assets in the run-up to its U.S IPO. Shares of Barrick were down

3.4%.

Energy added 2% as the price of oil settled

3.7% higher at $99.93 a barrel. Stalled efforts to end the Iran

war kept the Strait of Hormuz largely closed and constrained

Middle East supplies.

Economists have said that the oil price shock from the war is

unlikely to have a lasting impact on inflation, which should

allow the Bank of Canada to leave its benchmark interest rate

unchanged at 2.25% on Wednesday when the central bank is also

due to update its economic forecasts.

Canada's housing market slump, the longest in recent

decades, is straining household spending even as a record high

domestic stock market generates hundreds of billions of dollars

of increased wealth.