I stumbled across Precision Component Technology today while looking for some solid copper hollow point bullet info. P.C.T. is in Apex, NC, and began manufacturing SCHP and solid brass bullets last year, and appear to make similar products to what Cutting Edge Bullets does. For pistol calibers they offer one 108gr 9mm solid copper projectile with a square hollow cavity meant to fracture the bullet into multiple pieces, similar to the Controlled Fracturing bullet from Lehigh Defense, or the PHD bullet from Cutting Edge. PCT doesn’t load ammo, and the only manufacturer I can find doing anything with their projectiles is Stillwood Ammo in nearby Sanford, NC. PCT is operated by Andrew Barnes (no relation to Barnes Bullets) and operates out of the same facility as his Barnes Precision Machine company which manufacturers AR-15 components.
I’m sure the brass is commercial stuff since Stillwood doesn’t have their own headstamp. Stillwood only sells this 9mm load in 18rd MTM wallets (for $26 per wallet), which is sort of odd in today’s market.