Thank you Bitcoin_Arena.
Some people say mahtecminer.com is the official vendor.
According to their discord channel they probably are
Their official site:
https://risinghf.com/product/detail/26Official community:
https://discord.gg/x4ECnU7VqSHelium.com also lists RisingHF in their website though they have this warning on top of the list
Below are the Hotspot models that have so far been approved by the community and the Manufacturing Oversight Committee, which governs vendor onboarding. Please do your own research as a vendor listing does not equal endorsement or recommendation.