RMA:
Founded in 1971, RMA is one of six trade associations of the Metal Powder Industries Federation. Member companies must be commercially engaged in North America in the production of refractory metals and/or alloys 50% or more of which consist of refractory metals.
RMA serves to promote and expand the markets for refractory metals: tungsten, molybdenum, tantalum, columbium, chromium, rhenium, vanadium, boron, hafnium, cobalt, and the rare earth metals, principally cerium, lanthanum and yttrium.
The objectives of the association shall be to: serve as a voice for the refractory metals industries in dealing with agencies of the government on stockpiling, import and export regulations, defense programs, general communications, and any other such matters of concern; improve, promote, and expand the markets for the products of the members; promote investigation and research, including alerting members to developments in competing technologies and products; promote education in refractory metals, alloys, and products; cooperate with governmental agencies so as to provide maximum service to the government; and foster an awareness of ecological responsibility.
MPIF:

The Metal Powder Industries Federation (MPIF) is a "not-for-profit association" formed by the PM industry to advance the interests of the metal powder producing and consuming industries.
As its name states, it is a federation of trade associations—six in all—that are concerned with some aspect of powder metallurgy, metal powders, or particulate materials.
Throughout its long and distinguished history, MPIF has been a stalwart champion of this innovative technology, providing its member companies with a long list of services that help advance the art and science of PM while promoting its benefits to prospective end users.
NADCA®:

NADCA® Headquartered in Wheeling, IL, NADCA® represents the world's most effective die casters creating the world's best products. Working with a North American die caster guarantees innovation, integrity, accessibility, and reliability. The organization serves as the voice of the industry, promoting growth and enhancing its members' ability to compete domestically in the global marketplace.
Society of Allied Weight Engineers

The Society of Allied Weight Engineers is an international organization whose purpose is to promote the recognition of Weight Engineering as a specialized branch of engineering. The Society is organized into 22 chapters with members from across the United States, Europe, United Kingdom, and Canada.
The Society offers to members and industry a medium for the pooling and exchange of data and experience at local and regional levels, fostering a higher degree of efficiency in mass properties engineering topics. Regular chapter, regional and international meetings provide an opportunity for mass properties engineers to meet and to discuss mutual problems, procedures and specifications, thus broadening their individual horizons and becoming better informed.
APMI

APMI International was formed in 1959 as a nonprofit, professional society serving the technical and informational needs of individuals interested or involved in the science and art of powder metallurgy. APMI is the single best source of information about the most up-to-date developments and advances in this dynamic, expanding technology through its publications, conferences and local section activities.