Cesar Arostegui Pinto

Cesar Arostegui Pinto lists mineral products on Global Trade Plaza from Chile. The iron ore listing identifies the seller as Seewolfs Spa and describes a historical offer to Tai Rou Er Trading, Inc. with specified quantities and monthly volumes over a defined period, extendable to 36 months, at a quoted price per ton FOB Caldera, Chile, with payment by irrevocable, divisible and transferable letter of credit. The copper nanoparticles listing comes from Seewolfs SPA and details four grades: NP2.5 (CUNP-2.5) with hydrodynamic diameter 591.6 nm, electron microscopy size 2.5 nm, surface charge 25 mV, and nanosystem purity 15 to 35 ± 5%; CP150 (CUCP150) at 150 nm electron microscopy size, 190 nm hydrodynamic diameter, -15 mV surface charge, and nanosystem purity above 90%; CP250 (CUCP250) at 250 nm electron microscopy size, 300 nm hydrodynamic diameter, -15 mV surface charge, and nanosystem purity above 90%; and CP1500 (CUCP1500) at 1500 nm electron microscopy size, -15 mV surface charge, and nanosystem purity above 90%. All grades show spherical morphology, metallic copper crystalline structure by XRD, and nanoparticle copper purity of 99.9%.