https://www.nanamipaper.com/products/ss-crossfield-japan-version.html

https://www.nanamipaper.com/products/seven-seas-microdot-a5-grid-journal.html

https://pennoob.com/2021/10/28/tomoegawa-stops-making-tomoe-river-paper/

https://www.wellappointeddesk.com/2021/06/jesi-answers-all-your-questions-about-tomoe-river/

Apparently some suppliers are now specifying Tomoe River Sanzen paper, which presumably is the new manufacturer of the old paper brand which some are now calling Tomoe River Tomoegawa.

https://www.jetpens.com/Tomoe-River-Paper-Sanzen/ct/6678