The IAGC (International Association of GeoChemistry, formerly known as the International Association of Geochemistry and Cosmochemistry) is affiliated with the International Union of Geological Sciences and has been one of the pre-eminent international geochemical organizations for over thirty-five years. 
The principal objective of the IAGC is to foster co-operation in, and advancement of, geochemistry in the broadest sense. This is achieved by:
# working with any interested group in planning symposia and other types of meetings related to geochemistry, 
# sponsoring publications in geochemistry of a type not normally covered by existing organizations and,
# the activities of working groups which study problems that require, or would benefit from, international co-operation.
The scientific thrust of the IAGC takes place through its Working Groups (many of which organize regular symposia) and the official journal, Applied Geochemistry.
The specific objectives of the IAGC are:
# To foster the use of the tools and techniques of chemistry to advance the understanding of the earth and its component systems for the benefit of mankind and modern society;
# To contribute to advancement in geochemical research throughout the world, including both fundamental geochemical research aimed at understanding the global earth system and applied geochemical research that addresses problems of particular relevance to the welfare of mankind and society;
# To promote international and education cooperation in geochemistry through outreach activities that include:
#* establishing internal specialty-area working groups in topic areas that would benefit from international scientific cooperation,
#* sponsoring international scientific meetings related to geochemistry,
#* disseminating new knowledge through publication of the journal “Applied Geochemistry,”
#* fostering communication in geochemistry across the international scientific community,
#* encouraging the early career development of young geochemists,
#* contributing to geochemical education,
#* enhancing the visibility of the science of geochemistry and demonstrating its importance to mankind and society.