The Minnesota Materials Exchange is the waste-not classifieds especially for:

  • Minnesota businesses
  • Industry
  • Non-Profits
  • Institutions

The Materials Exchange is a free service that links organizations that have reusable goods they no longer need to those who can use them. This business reuse network helps prevent usable materials from becoming waste and saves users money.

The program is operated as part of the Minnesota Technical Assistance Program (MnTAP) at the University of Minnesota. MnTAP provides tailored pollution prevention and energy efficiency solutions for Minnesota businesses.

Using the Exchange

  1. View listings: You can view listings (available and wanted) without signing in. Click on "Exchange" at the top of the page and click between the tabs under "All Listings" to view different types of listings.
  2. Post listings and contact users: Sign in or create an account to post listings and to view contact information for listings.
  3. University of Minnesota employees: When you sign in with an account associated with your @umn.edu email address, you will see the University's private Virtual Warehouse under Exchange by default. To view non-University listings, select "All" or "Minnesota Materials Exchange" from the drop-down menu at the top of the exchange.
  4. Remove listings and report exchanges: Please remove listings when they are no longer available or wanted and indicate the outcome of your listing. Please report exchanges.

Rules and Policies

The Minnesota Materials Exchange does not allow listings for:

  • Live animals
  • Illegal goods
  • New (unused) items unless they would otherwise be discarded
  • Household items
  • Services

Listings on the Minnesota Materials Exchange must not include fees that exceed 20% of the current value.

Exchange of Hazardous Materials:

Each party has the legal responsibility to determine whether a listed material is a hazardous waste or a hazardous material. Both hazardous and solid wastes must be managed in accordance with all relevant regulations and laws. The exchange programs that contribute listings to this catalog are not responsible for determining what may constitute a hazardous material or hazardous waste or may create a hazardous situation. The Minnesota Pollution Control Agency, University of Minnesota, MnTAP and/or partner programs reserve the right not to list a material, to delist a material, or to edit information provided by the listing party.


  • Receive low- or no-cost materials
  • Reduce purchase and disposal costs
  • Free up storage space
  • Avoid sending items to the landfill/incinerator