Chinese President Xi Jinping has expressed the desire to promote cooperation with Pakistan in various fields and enhance people-to-people contacts.In a congratulatory letter to Prime Minister Shehbaz Sharif on his birthday, he stated that strengthening China-Pakistan relations is of utmost importance to him.The Chinese President noted that Pakistan and China are strategic cooperative partners through both good and challenging times. History is a witness that both countries always trusted and supported each other.He emphasized that the changing international scenario has never affected this strong relationship.He expressed desire to work together with Prime Minister Shehbaz Sharif to promote strategic cooperation and advance the construction of the China-Pakistan Economic Corridor (CPEC).Source: Radio Pakistan