I found another Swap Data Repository, to add to the list updated recently. If you need to ensure you report to all relevant SDRs, you need to know the full list. At the moment the updated chart is hiding on this page https://theotcspace.com/ccps-and-sdrs/ which needs a password. A few people have been kind enough to donate to my Movember fund raising by clicking here to donate http://mobro.co/billhodgson, and in return receiving the password. They all get my thanks, twice over.