Smart water purification factory of BWT Haier was put into production in Qingdao, Shandong province on June 9, 2023. The factory is located at Qingdao International Economic Cooperation Zone with a planning area of 61333 sqm (92 Mu) and a total investment of 0.46 billion Yuan. It manufactures full-line household water purification products including prefilters, central water softeners, central water filters and under-sink water filters with a designed full capacity of 2 million units per year. The cooperation between Haier and BWT started from 2019. The production of the new factory marks a strategic upgrade of the cooperation.