In its 2018 report on China's military, the Department of Defense revealed that the People's Liberation Army Air Force had been re-assigned a nuclear mission.
"The PLA is upgrading its aircraft with two new air-launched ballistic missiles, one of which may include a nuclear payload," the Pentagon explained in its 2019 report. "Its deployment and integration would, for the first time, provide China with a viable nuclear 'triad' of delivery systems dispersed across land, sea, and air forces."
The Diplomat reports that this new ALBM is a two-stage, solid-fueled ballistic missile with a range of 3,000 km designated by US intelligence as CH-AS-X-13. The weapon has been tested aboard a modified H-6K bomber identified as H6X1/H-6N.