GLOBAL SPECIALTY POLYMER

Connecting Global Material Makers
Supplying High-Performance Engineering Plastics

We represent Idemitsu, Lotte, Ueno and Yamaguchi, plus LJ Polymer PA6T/PA10T. Factory-sealed materials with COA traceability and fast delivery from local warehouses.

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LOONGJAY warehousing and logistics center
100%Factory-sealed · Authentic & traceable
25kgStandard bag MOQ
7+Product lines represented
4Direct overseas principals
100%Factory-sealed
25kgStandard bag MOQ
CHINA NETWORK

China Network · Local Service

Headquartered in Shenzhen, Guangdong, LOONGJAY specializes in polymer and specialty material distribution, providing one-stop material solutions for a wide range of customers.

  • HQ
    HQ (Shenzhen)

    Sales & technical staff · Local warehousing & logistics

  • OF
    Offices (6 cities)

    Dongguan · Shanghai · Nanjing · Qingdao · Taipei

  • WH
    Partner warehouses & logistics (5 cities)

    Shenzhen · Dongguan · Nanjing · Qingdao · Taipei

Company headquarters
HQ Strength

Our Shenzhen HQ coordinates multi-brand representation, warehousing, logistics and technical service.

Office Warehouse
Six-city China network
Six-city network · Local warehousing & logistics
Global supply network
GLOBAL NETWORK

Global Network · Worldwide Sourcing

Direct links with principals in Japan, Korea, the USA, Singapore, France and Malaysia enable worldwide sourcing and local delivery for global customers.

JapanKoreaUSAFranceSingaporeMalaysia
International port
Global Trade Network

Through international ports and ocean freight, we import factory resins and reliably supply customers worldwide.

PRODUCT PORTFOLIO

Product Portfolio

Covering PPA, SPS, LCP, PC, mica powder and long-chain nylons — multi-grade sourcing through one window.

LJ PPA high-temperature nylon resin pellets
SOLE AGENT · LJ

PPA High-Performance Polyamide

PA10T/10I, melting point 306–316°C, low moisture absorption, high dimensional stability.

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Idemitsu SPS XAREC factory packaging
IDEMITSU

SPS Syndiotactic Polystyrene

XAREC: hydrolysis-resistant, low dielectric, chemical-resistant for E&E applications.

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Ueno LCP factory packaging
UENO

LCP Liquid Crystal Polymer

Monomer-to-resin integration; high flow, low outgassing, high heat resistance.

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Lotte INFINO black resin pellets
LOTTE

LCP INFINO

Injection grades for camera modules, connectors and fiber ferrules.

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Yamaguchi mica powder silver-white flakes
YAMAGUCHI

Mica Powder

Reduces molding shrinkage, improves precision and damping/barrier performance.

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Translucent nylon PA12/PA612 resin pellets
More Grades

Other Engineering Plastics

Idemitsu PC, Shenghong PA6T, Xianglong long-chain nylons PA612/PA12.

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Precision connector applications
APPLICATIONS

High-Performance Materials · Precision Manufacturing

SPS, LCP and PPA are widely used in automotive connectors, E&E, SMT components, high-frequency communication and thermal management, meeting high heat, low dielectric, dimensional and halogen-free flame-retardant requirements.

Need Sourcing Advice or a Quote?

Tell us your part, operating conditions and volume; our engineers will recommend grades and arrange samples.

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