A materials exchange is an operation that enables industrial process wastes, by-products, surpluses, or off-specification materials to be
transferred to another company where they are used as a process input. Materials exchanges are operated by governments, industry groups, and private firms.
By exchanging byproducts with other companies, industry can achieve substantial waste reduction. Industrial ecology (see Science:Environment:Sustainability:Industrial Ecology) is a closely related concept.
Sites of Businesses which deal in used computers and/or computer parts should be submitted to Computers/Hardware/Used. Sites of Businesses which collect and recycle electronic equipment and parts should be submitted to Business/Energy_and_Environment/Waste_Management/Recycling/Electronics.
NOTICE: Sites already listed in either of the categories above will not receive an additional listing in this category.
A materials exchange for building materials is an organization or business that facilitates the reuse of used building materials by transferring them from someone who doesn't want them to someone who can use them.
Use this category only if your business mainly deals in this type of material. Do not use this category if your business supplies mainly reproduction items or recycled materials or items made from reclaimed materials.
Sites of firms or organizations that promote the exchange of computers or computer parts for reuse.
Sites of Businesses which deal in used computers and/or computer parts should be submitted to Computers/Hardware/Used. Sites of Businesses which collect and recycle electronic equipment and parts should be submitted to Business/Energy_and_Environment/Waste_Management/Recycling/Electronics.
NOTICE: Sites already listed in either of the categories above will not receive an additional listing in this category.