Reliable parts.
Built without the guesswork.
U.S. BASED · CHINA CONNECTED

Larsen Sourcing Co. is the technical bridge for U.S. automotive businesses, locating high-reliability cast and CNC parts manufacturers across China. We specialize in automotive parts sourcing and precision machining, connecting American brands with vetted factories capable of producing to tight tolerances and OEM-grade specifications.
We focus on turnkey contract manufacturing for automotive cast parts and CNC parts, backed by hands-on material procurement and in-person quality control. As your dedicated automotive sourcing agent on the ground in China, we manage supplier vetting, machining oversight, and offshore manufacturing so your parts arrive on spec and on time.
Whether you're sourcing a single automotive component or managing an ongoing production run we are here for you.
OUR SERVICES
01
FACTORY TOURS
At Larsen Sourcing Co., our white-glove factory tours are curated for American automotive brands who want to meet their machining and casting partners in person before committing. Whether you're evaluating automotive cast parts, CNC parts, or automotive part procurement. We will walk you through vetted facilities across China so you can inspect tooling, machining tolerances, and quality control processes firsthand. As an automotive sourcing consultant with native Mandarin fluency on the ground, we cater trips to maximize the ease and efficiency of your trip. Real-time translation, cultural context, and the ability to ask the technical questions factory owners. Unlike a typical sourcing agent working remotely, we're physically present in China, giving you an OEM plus experience that goes beyond simple order placement into genuine manufacturing partnership for cast and machined components.
02
QUALITY CONTROL
Once production is underway, Larsen Sourcing Co.'s quality control service protects you from the risks that sink automotive sourcing deals. Inconsistent cast parts, out-of-tolerance CNC machining, or material substitutions that only surface after the container's already at sea. As your dedicated automotive sourcing agent in China and USA, we conduct in-person inspections at every critical stage, from raw material and casting checks to final CNC machining tolerances and pre-shipment reviews, so defects get caught on the factory floor instead of in your warehouse or worse, on a vehicle. This is an OEM plus partnership where someone who understands both the language and the machining specs is physically present to hold your turnkey contract manufacturing partner accountable to automotive-grade standards.
03
LOGISTICS COORDINATION
For American automotive brands sourcing offshore, the most expensive mistakes happen in the days before a shipment leaves the dock. That's why Larsen Sourcing Co. builds pre-shipment inspection into every engagement as a guarantee, not an afterthought. Before a single pallet of cast parts or CNC-machined components gets loaded, we're on-site verifying dimensions, checking specifications against your drawings and tolerances, and confirming your delivering exactly what was promised. We catch the defects, substitutions, and shortcuts before seeing it's too late. Finally, we coordinate directly with freight forwarders to keep your production timeline on track. production timeline on track.
Why Choose Larsen Sourcing?

STRATEGIC HUBS
Larsen Sourcing Co. operates at the intersection of automotive manufacturing and precision machining. We provide U.S. automotive businesses with direct access to high-reliability cast parts and CNC parts manufacturers across China, ensuring seamless quality control and shipping guarantees for small and mid-sized automotive brands and suppliers.
Most sourcing companies work from a distance. We're on the ground in China. Larsen Sourcing Co. pairs American engineering know-how with native Mandarin fluency to give product founders a true OEM plus partner for factory tours, quality control, and turnkey contract manufacturing so nothing gets lost in translation, and no surprises show up at your door.
Why Choose Larsen Sourcing?
Most sourcing companies work from a distance. We're on the ground in China. Larsen Sourcing Co. pairs American engineering know-how with native Mandarin fluency to give product founders a true OEM plus partner for factory tours, quality control, and turnkey contract manufacturing so nothing gets lost in translation, and no surprises show up at your door.
Get in Touch
Ready to source high-reliability automotive components? Our technical team is available to assist with factory tours, machining quality control, and shipping guarantees across China.
CONTACT US
