Is this import? Have you asked permission from MML? MML data is licensed as CC BY 4.0.  So you need to ask for explicit permission for use in OpenStreetMap from licensor. See https://blog.openstreetmap.org/2017/03/17/use-of-cc-by-data/

Also you should follow this guidline for imports:
https://wiki.openstreetmap.org/wiki/Import/Guidelines