Global manufacturing.
Local customer support.
Three Southern California locations connect our customers with manufacturing in China. Each has a distinct role: corporate coordination in Diamond Bar, sales and inbound warehousing in Pomona, and additional distribution capacity in Mira Loma.
Our corporate headquarters
1370 Valley Vista Drive, Suite 200
Gateway Corporate Center
Diamond Bar, CA 91765
Our Diamond Bar headquarters anchors COi Rubber's Southern California presence. We relocated here in 2025 as part of the company's investment in serving customers and supporting its growing operations.
The headquarters works alongside our Pomona sales office and warehouse and our distribution resources in Mira Loma. Together, these locations connect business coordination, customer communication and delivery planning with our manufacturing operations in China.
COi's Pomona sales office and warehouse
Sales, quality support and inbound warehousing
Our Pomona facility brings our sales office, quality control (QC), quality assurance (QA) and inbound warehouse together. It is a local point of contact for customers discussing part requirements, quotations and delivery needs, and a receiving location for products arriving from overseas.
Our team reviews customer requirements and documents, coordinates quality checks and works with customers, manufacturing and transportation providers as orders move from production toward delivery. With over 100 pallet positions, the warehouse provides space for incoming products and customer inventory, connecting document review and quality support with the movement of goods.
1995 West Holt Avenue
Pomona, CA 91768
Distribution capacity for demand surges
COi Rubber utilizes a 25-dock distribution warehouse in Mira Loma. When a customer's demand surges, this location gives us capacity to receive, stage and ship large container volumes so orders keep moving.
This distribution resource complements our Pomona inbound warehouse. It supports shipment staging and outbound freight pickups, giving the Southern California network room to respond when customer requirements increase.
4550 Wineville Road, Suite B
Mira Loma, CA 91752
Entrance from Cantu-Galleano Ranch Road
Mira Loma distribution warehouse interior
Connected from production to delivery
Our manufacturing facility in China produces custom rubber components, with compounding and production under one roof. Our manufacturing facility is IATF 16949 certified. The US team coordinates project communication, technical requirements and delivery planning.
Our Southern California locations provide customer support, warehousing and distribution. Production takes place in China.
Tell us what your project needs
Share your drawing, material specification, estimated annual usage and target delivery schedule. Our team can review the requirements with you.
Discuss your project