Rakuten Inc., a Japan-based Internet giant, decides to establish a capital partnership with Japan Post Holdings Co. it has been seen that Rakuten’s price increase is the largest in more than four years, according to the Japan Broadcasting Corporation (NHK).

The deal will deepen an existing logistics alliance the two companies forged last year when they agreed to share data and cooperate on package delivery.

At present, Rakuten’s share price soared 11% in Tokyo, the biggest intraday gain since February 2017, and that of Japan Post Holdings climbed 3.1%.

Japan Post Holdings holds a press conference with Rakuten at 3 PM (15:00) Japan Time on Friday. Rakuten confirms that it will sell its shares to Japan Post Holdings. And it plans to raise 241.8 billion yen (about $2.23 billion) through the share sale.