The Ontario Mennonite Relief Sale Inc. operates two sales annually - the Heifer Sale held the second last Friday of February in Listowel and the New Hamburg Mennonite Relief Sale held in New Hamburg the last Friday and Saturday of May.

The first sale was organized in 1967 by individuals from Mennonite churches in southwestern Ontario in response to ever-growing world-wide need for relief from hunger, poverty and natural disaster.  All funds raised are forwarded to Mennonite Central Committee for their work around the world.

Over the years, the annual contribution to the MCC has increased from $31,500 in 1967 to over $330,000 in 2010, bringing the 44 year total contribution to nearly $15 million dollars.