McArthurGlen, the international operator of designer factory outlet centers, has launched a rent relief package for its retail partners until the end of this year. The group is waiving all minimim base rent, turnover-based rent and marketing charges for tenants in all of its centers that were closed from April 1 to June 30. After a shopping center reopens, the group will waive all minimum base rents. From July 1 to Dec. 31, McArthurGlen will then either charge turnover rent or a reduced minimum base rent. A total of 18 out of the group’s 25 centers have so far been allowed to reopen in eight countries, including Austria, France, Belgium and Canada. Over 90 percent of tenants have opened their stores. The group will open two new shopping centers, in Paris and near Birmingham, which are currently under construction.