On 4 October 2022, the following substances had a Harmonised Classification and Labelling (CLH) proposal submitted:

1. Pentaboron sodium octaoxide

2. Sodium metaborate tetrahydrate

3. Calcium metaborate (Ca(BO2)2) and calcium tetraborate (CaB4O7), amorphous reaction products of boric acid with lime

This brought the number of submitted CLH intentions to 59.