RE:RE:RE:RE:ivanhoe says "In cases where the stock drops in an unusual manner, a clear and direct statement is put out by the company, often at the request of the exchange."
News came out and they did put out 2 press releases countering the claims. If there were material changes, they would be in the releases.
They even reference the market reaction in one of the releases:
Ivanhoe Mines is considering the impact on its share price correlated with the Globe and Mail's headline, given the sharp decline and subsequent sharp recovery in the company's share price over the two-day trading period that ended December 16, 2022.