CIEC (Centre International des Engrais Chimiques) is the oldest scientific organization solemnly dedicated to fertilization, founded in 1932 and 1933 at the first International scientific conferences for fertilisers in Rome and Amsterdan.
CIEC is a non-profit, non-governmental organization (NGO) and actually organized as a task force with membership on invitation only, merged with CIEC-ASIA (founded in 2016) from 2019 on.
CIEC provides annual events to present and discuss scientific issues of fertilizer research on an international platform.