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Here are five things you need to know this morning

Trump threatens fresh tariffs on Canadian fertilizer: U.S. President Donald Trump is threatening to impose fresh tariffs on agricultural products, including Canadian fertilizer. Speaking at a White House event to announce billions in new aid for U.S. farmers, Trump suggested he could target fertilizer imported from Canada to boost domestic production, saying the U.S. could impose “very severe tariffs” on it if necessary. Tariffs on fertilizers largely sourced from abroad could renew concerns from American farmers, who have grappled with rising input costs in recent years. Canada is the U.S.’s biggest supplier of potash.

Brookfield, Qatar create US$20B venture: Brookfield Asset Management and Qatar Investment Authority are teaming up on a US$20 billion venture to invest in artificial-intelligence infrastructure. Brookfield will invest through its newly launched AI fund, which aims to mobilize as much as US$100 billion of investments globally. The asset manager has estimated the global build-out will require trillions of dollars over the next decade. Qatar Investment Authority says the partnership will also advance Qatar and help build a diversified, innovation-based economy.

Group Dynamite blows past expectations: Groupe Dynamite delivered results in its third quarter that blew past expectations. The Canadian fashion retail company posted profit and revenue that topped estimates and saw same-store sales jump more than 30 per cent. Groupe Dynamite says the results were driven by strong demand as well as its real estate strategy. The company also raised its targets for the year for comparable store sales and profit. It has also declared a special dividend.

Microsoft expands Canada investments: Microsoft will be adding to its AI investments in Canada, with a total of US$19 billion between 2023 and 2027. The tech giant will build new digital and AI infrastructure in the country, with new capacity set to come online in the second half of next year. Canada will receive more than US$7.5 billion in the next two years. Microsoft is also launching a new plan to promote and protect Canada’s digital sovereignty, including protecting Canadian data from other governments including the U.S.

Nvidia gets Approval to Ship H200: U.S. President Donald Trump has granted Nvidia approval to ship its H200 artificial intelligence chips to China. On the heels of the move, Trump has vowed to “protect national security, create American jobs, and keep America’s lead in AI.” Trump has also said Nvidia’s top products would remain off bounds. There are reports that regulators in Beijing are considering ways to allow limited access to the H200, with buyers being subjected to an approval process to explain why their needs are not met by domestic producers.