Stocks in China could potentialize further declines on the upcoming Wednesday.

The Asian markets showed a mixed performance on Tuesday, with some indices advancing while others declined. The Shanghai Composite Index (SCI) ended a three-day winning streak, losing 0.45 percent, or 17.40 points, to close at 3,840.73, just short of the 3,860-point plateau. Meanwhile, the Shenzhen Composite Index plunged 2.04 percent, or 50.37 points, to end at 2,414.46.

In the Chinese stock market, Huaneng Power advanced 0.94 percent, China Shenhua Energy added 0.69 percent, Yankuang Energy shed 0.61 percent, PetroChina surged 4.25 percent, and China Petroleum and Chemical (Sinopec) jumped 1.93 percent. On the other hand, Gemdale declined 1.23 percent, Poly Developments dropped 0.89 percent, and China Vanke retreated 1.32 percent.

Banking sector stocks also saw a mixed performance. China Merchants Bank soared 3.48 percent, Bank of Communications rallied 1.95 percent, while China Life Insurance eased 0.10 percent. Industrial and Commercial Bank of China collected 2.57 percent, Bank of China and Agricultural Bank of China both accelerated 1.99 percent.

Elsewhere in the region, Japan's Nikkei 225 and South Korea's Kospi were closed for a holiday, while Hong Kong's Hang Seng Index was not available due to a technical issue.

European and U.S. markets were down, and Asian bourses are expected to follow, as renewed ambiguity surrounding U.S. tariff policies weighed on investor sentiment. The global forecast for Asian markets remains negative due to this uncertainty.

In other news, the U.S. Court of Appeals ruled most of President Donald Trump's global tariffs as illegal. The decision, made by the court itself, stated that the President did not have the authority to impose broad tariffs under a national emergency law. This ruling could have significant implications for the ongoing trade disputes between the U.S. and its trading partners.

Crude oil prices increased due to concerns about supply disruptions following strikes on Russian energy sites by Ukraine. West Texas Intermediate crude for October delivery was up $1.51 or 2.36 percent at $65.52 per barrel.

Jiangxi Copper perked 0.14 percent, Aluminum Corp of China (Chalco) fell 0.25 percent, and China's largest lender, China Construction Bank, remained unchanged.

In the U.S., Treasury yields surged due to concerns about potential repayment of billions of dollars from Trump's tariffs. The U.S. 10-year Treasury note yielded 1.344 percent, up from 1.315 percent on Monday.

The market will continue to closely monitor developments in U.S. tariff policies and their potential impact on global trade and economies.