Due to anticompetitive actions, the EU has opened investigations against some of the largest tech companies globally.

The companies may be hit with hefty fines equal to 10% of their yearly revenue if it is determined that they violated the regulations.

The investigations were announced on Monday by Thierry Breton, the president of industry, and Margrethe Vestager, the head of EU antitrust.

Actually, none of the companies are situated in Europe; instead, ByteDance is headquartered in Beijing, and five of the companies are based in the US.

Two weeks after delivering their well-crafted compliance reports, three of them are now being questioned.

Meanwhile, in a historic lawsuit against the tech giant unveiled last week, the US accused Apple of controlling the smartphone market.