currently, the only company making tsangan kits (ie, that has the molds and can be contracted by us to make them) is signature plastics, and only in ABS. we know KBC has the molds for ABS and PBT caps, but it's not clear what their MOQ is, since they have only produced them for OEMs.
i have confirmed with imsto that, at the moment, he does NOT have molds to produce tsangan kits in cherry profile thick PBT. his non-thick PBT caps are, afaik sourced from KBC (or the factory we know as KBC; ie, filco/vortex/ducky/etc.'s key OEM)