Both Facebook and Twitter are highly popular in foreign markets.
On April 14, documents showed musk offered to buy Twitter's issued common stock in cash for $54.20 per share.
Musk sent a letter to Twitter on April 13 proposing to buy "all of Twitter's issued common stock that is not held by Musk" for $54.20 per share, the filing said.
In fact, Musk has now become Twitter's largest shareholder.
Musk's wholly-owned acquisition of Twitter made Twitter's stock price rise by more than 11%.