On February 28, 2017, National Health and Family Planning Commission of the PRC published “NHFPC 2017-1 Notice about new food additive Ammonium Carbonate, 9 new food flavor such as 6-Methylheptanal and enlarge usage scope of 2 food additives such as Sodium metabisulfite”. This notice acts as the fifth supplementary document for China food additive regulation GB2760-2014, published on December 24, 2014.
Ammonium Carbonate is allowed to be used in biscuits following good manufacturing practices (GMP). Nine flavors are allowed to be used in food, except for 28 food categories in which the usage of flavor is forbidden. Compared to previous usage, Sodium metabisulfite is permitted to be used in another canned vegetable named Yintiao Cai Vegetable, with the limitation of 0.2 g/kg. Meanwhile, Glucono delta-lactone is permitted to be used in light cream following GMP as acid regulator.
More information can be found here (in Chinese).