中英聯合聲明
After the fifth and final UMEXCO mission to London in September 1984, during which its members were briefed on the details of the agreement, UMEXCO publicly endorsed the proposed Sino-British Joint Declaration, believing that it fulfilled the demands set out in UMELCO's position paper. In December, Chung was invited to witness the signing of the Sino-British Joint Declaration. For his contributions during the negotiations, he was awarded Knight Grand Cross of the Most Excellent Order of the British Empire (GBE) after his retirement in 1989.