Sage has an agreement with WHEEL (Wales Higher Education Electronic Library) from 2020 to 2024. The participating member institution list is available here.The details of the agreement are as follows:
Subscription journals: Corresponding authors publishing an article in 900+ subscription journals in the current Sage Premier package, as well as in the IMechE Journal Collection and the Royal Society of Medicine Collection, which offer hybrid open access publishing (Sage Choice) can be published open access at a highly discounted rate of 200 GBP.
Authors do not need to take any action to benefit from this offer. Sage will contact all eligible authors to inform them of the agreement and invite them to the Sage Open Access Portal to take any additional steps needed to make their article open access under the terms of this agreement.