On 10-14 Nov ,2019, Flotation ’19 conference was held in Cape Town, South Africa participated by around 300 delegates from more than 30 countries. Headed by GM Han Long, the delegation of BGRIMM Group attended the conference, during which, Han Long also took part in the IMPC council meeting for preparing IMPC 2020.

As the authors, Dr Yang Yihong and Zhang Xingrong respectively gave an oral presentation titled "Hydrodynamic and metallurgical evaluation of the 680 m3 flotation cell in industrial application”and "Flotation behavior of malachite from calcite and quartz with chelating collector and its adsorption mechanism”. During the conference, BGRIMM delegates exchanged views on the fields of minerals processing, flotation reagents, et al. with international colleagues from University of Cape Town, MINTEK, University of Queensland, Imperial College London, McGill University, Roytec and Autotec.