西日本貿易（株）
Western Japan Trading Co., Ltd. is a privately held Osaka-based trading company founded in 1961 that has specialized exclusively in Japan-China bilateral trade for 65+ years. It serves Japanese industrial manufacturers across machinery, automotive, electronics/semiconductor, and chemical verticals via 10 Asia offices, offering product sourcing, OEM selection, dangerous goods logistics, and NMPA registration services.
- Company typePrivate
- Founded1961
- HeadquartersOsaka (Head Office), Japan
- Headcount11–50
- GTM typeB2B
- OfferingServices
What 西日本貿易（株） does
Western Japan Trading Co., Ltd. (西日本貿易株式会社) is a privately held Osaka-headquartered trading company (sogo shosha) founded in 1961 as one of the first Chinese-designated "friendly trading companies" (友好商社) for Japan-China commerce. The firm specializes exclusively in Japan-China bilateral trade, operating across 10 Asia offices — two Japanese headquarters (Osaka and Tokyo) plus eight China locations (Shanghai as regional hub, Guangzhou, Beijing, Xi'an, Dalian, Hefei, Nanjing, Shenzhen) and a Bangkok office established for ASEAN market development, with a group headcount of approximately 200.
The company's product portfolio spans industrial machinery (grinding machines, superabrasives including CBN/diamond and PCBN), electronic materials (SiC wafers and ingots, AlN substrates, film capacitors sourced from Xiamen Faratronic), power equipment (transformer oil pumps under exclusive agency for Teikoku Electric in China), functional films, chemical equipment (on-site hydrogen peroxide generation systems), and lithium-ion batteries. Service offerings include dangerous goods import/export agency (under hazardous chemicals licenses at Shanghai and Guangzhou), China NMPA cosmetic raw material registration agency, China OEM partner selection, plant equipment proposals, and aftermarket automation services delivered through the Ichiwa Technology (Changshu) joint venture. In July 2026 the company launched PROMISE, a lab-grown diamond jewelry sub-brand, marking its first consumer-facing retail initiative.
The business model is transaction-fee based B2B trading with project-based pricing, supplemented by agency commissions, regulatory services, and technical service revenue. Head office sales scale is disclosed at ¥35 billion. Customers are primarily Japanese industrial manufacturers across machinery, automotive parts, electronics/semiconductor, and chemical verticals, with Chinese trading companies as a secondary segment. GTM is enterprise field sales executed by bilingual staff at Japan and China offices, supported by participation in major Japanese trade exhibitions (NEPCON Japan, TECHNO-FRONTIER, SEMICON Japan, etc.).
西日本貿易（株） firmographics
Firmographics- Name
- 西日本貿易（株）
- Legal name
- 西日本貿易株式会社
- Website
- https://wjtc.co.jp
- Company type
- Private
- Founded year
- 1961
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Western Japan Trading Co., Ltd. is a privately held Osaka-based trading company founded in 1961 that has specialized exclusively in Japan-China bilateral trade for 65+ years. It serves Japanese industrial manufacturers across machinery, automotive, electronics/semiconductor, and chemical verticals via 10 Asia offices, offering product sourcing, OEM selection, dangerous goods logistics, and NMPA registration services.
- Ownership category
- akta.pro rank
西日本貿易（株） industry classification
Industry- Product category
- International Trade Services
- NAICS
- Industrial Machinery and Equipment Merchant Wholesalers (42383), Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers (423810), Industrial Machinery Manufacturing (33324)
- SIC
- Wholesale-Industrial Machinery & Equipment (5084), Wholesale-Chemicals & Allied Products (5160), Construction, Mining & Materials Handling Machinery & Equip (3530)
- akta.pro primary industry
- Trade Document Generation & Management (Commercial Invoice, Packing List, COO, Certificates) (TLAEAOAF)
- akta.pro secondary industries
- Tariff Classification & HS/HTS Automation (TLAEAOAC), Sanctions, Embargo & Export Controls (EAR/ITAR) Compliance Tools (TLAEAOAI)
Keywords
Where 西日本貿易（株） is headquartered
LocationHeadquarters
- HQ city
- Osaka (Head Office)
- HQ country
- Japan
- HQ region
- Asia
Offices12 records
Markets served
西日本貿易（株） business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Supply Chain, Marketing or Sales, Infrastructure, Others
Revenue model
- Import Trading (China to Japan): Import of industrial machinery, machine parts, electronic components and materials, semiconductor materials (SiC wafers, AlN substrates), chemical products, mineral products, lithium-ion batteries, and industrial materials from China to Japan
- Export Trading (Japan to China): Export of Japanese machinery, tools, precision equipment, chemical products, and various industrial products to China
- Trading Commission and Agent Services: Agency and intermediary services for import/export operations, dangerous goods handling agency, NMPA registration agency, OEM matching, plant equipment proposal services
- After-Sales and Technical Services: Installation, debugging, and maintenance services through Ichiwa Technology subsidiary; daily delivery and inventory management services
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Pay-as-you-go | B2B trading services - project-based pricing |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels4 records
西日本貿易（株） product offering
Product offeringCore offering
Western Japan Trading Co., Ltd. is a China-specialized general trading company (sogo shosha) founded in 1961 that imports industrial machinery, machine parts, electronic components, semiconductor materials, chemical products, mineral products, lithium-ion batteries, and industrial materials from China to Japan, while exporting Japanese machinery, tools, precision equipment, chemicals, and industrial products to China. The company also provides agency services including dangerous goods import/export handling, China NMPA cosmetic raw material registration, OEM partner selection, plant equipment proposals, and after-sales automation support through its Ichiwa Technology subsidiary.
Product overview
West Japan Trading Co., Ltd. is a China-specialized trading company with over 65 years of experience in Japan-China trade. The company operates as a comprehensive trading platform offering both products and services. Core products include SiC wafers and ingots, AlN substrates, film capacitors, transformer oil pumps, superabrasives (CBN/diamond), grinding machines, 3D decoration films, and hydrogen peroxide generation equipment. Under the PROMISE sub-brand, the company also offers lab-grown diamonds for jewelry applications. Services span import/export agency for dangerous goods, NMPA cosmetic raw material registration, China OEM partner selection, Chinese plant equipment proposals, lithium-ion battery imports, and automation services through subsidiary Ichiwa Technology. The company maintains 10 offices across Japan, China, and Thailand with approximately 200 employees.
Differentiator
Problem solved
Functional benefit
Brands
- PROMISE: Lab-grown diamond jewelry brand specializing in loose diamonds and custom jewelry. Established leveraging the company's procurement and supply capabilities in the jewelry industry.
Products and services
- SiC (Silicon Carbide) Wafers and Ingots Silicon carbide wafers and ingots for power semiconductors, LEDs, and RF devices, available in 4-8 inch sizes in semi-insulating and N-type grades. Sourced from Chinese manufacturers for Japanese electronics and semiconductor customers.
- AlN (Aluminum Nitride) Substrates Aluminum nitride substrates for thermal dissipation, IGBT, and semiconductor devices, available in standard sizes from 2x2 inch to 5x5 inch with thicknesses of 0.385-10mm. Imported from Chinese manufacturers for Japanese semiconductor applications.
- Film Capacitors Film capacitors for automotive DC-Link, trains, safety standards, and PCB applications, imported from Xiamen Faratronic Co., Ltd. for Japanese customers.
- Transformer Oil Pumps Transformer oil pumps for ground and vehicle transformers. Designated exclusive sales agent for Teikoku Electric Mfg. Co., Ltd. in the China market.
- Superabrasives (CBN, Diamond) and PCBN Sintered Bodies CBN and diamond grains, and PCBN (polycrystalline cubic boron nitride) cutting tools for machine tool applications. Exclusive Japanese distributor for Besco Superabrasives.
- Grinding Machines Various grinding machines including centerless grinders, horizontal internal grinders, CNC cylindrical grinders, vertical double disc surface grinders, and thread grinders from Japanese manufacturers, offered to Chinese customers.
- 3D Special Decoration Films 3D special decoration films that create dimensional effects on flat surfaces, used in cosmetics, alcohol packaging, tobacco, smartphones, automobiles, and anti-counterfeiting applications.
- Hydrogen Peroxide Generation Equipment On-site hydrogen peroxide generation equipment using an electrochemical process, marketed as the world's first industrial electrolytic hydrogen peroxide system. Japanese general agent for Phase Two Chemicals.
- PROMISE Lab-Grown Diamond Brand Sub-brand specializing in lab-grown diamond loose diamonds and jewelry products, offering OEM/ODM capabilities to the jewelry industry. Leverages the company's procurement and supply capabilities.
- Dangerous Goods Import/Export Agency Service Agency service for the import and export of hazardous chemicals between Japan and China. Both Shanghai and Guangzhou offices hold dangerous goods handling licenses.
- NMPA Cosmetic Raw Material Registration Agency Service China NMPA (National Medical Products Administration) cosmetic raw material registration agency service providing registration and ongoing maintenance support for overseas ingredient manufacturers seeking to enter the China cosmetics market.
- China OEM Partner Selection Service Service for selecting and qualifying Chinese OEM manufacturing partners, including negotiation, audit support, and quality inspection for manufacturing in China.
- Chinese Plant Equipment Proposal Service Proposal service for Chinese plant equipment including conveyance, crushing, grinding, dust removal, industrial pumps, fans, and cooling towers, introducing cost-competitive Chinese equipment to Japanese customers.
- Lithium-Ion Battery Import Service Import service for lithium-ion batteries with specialized handling for dangerous goods compliance and logistics.
- Ichiwa Technology Automation and After-Sales Service Through its Ichiwa Technology (Changshu) Co., Ltd. subsidiary (joint venture), the company provides automation equipment manufacturing, precision parts processing, and machine tool installation, adjustment, debugging, and maintenance services in China.
- China Market Research Service Market research service for companies seeking to export to or import from China, leveraging the company's local market knowledge and networks.
- ASEAN Market Development Service ASEAN and Southeast Asia market development service leveraging the company's China expertise to facilitate business connections, particularly supporting Chinese companies entering Thailand and connecting them with Japanese trading capabilities.
Quantifiable outcome
- 65+ years of China trade experience as pioneer trading company
- +2 more outcomes
Companies that use 西日本貿易（株）
Customer profileNamed customers4 records
Segments2 records
Ideal customer profiles2 records
西日本貿易（株） technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
西日本貿易（株） partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Teikoku Electric Mfg. Co., Ltd. (株式会社帝国電機製作所)coreWestern Japan Trading serves as the designated exclusive sales agent for Teikoku Electric's transformer oil pumps (ground transformer oil pumps and vehicle-mounted oil pumps) in the China market. Handles sales of products and parts along with related activities.
Scale indicators6 records
Recent moves7 records
Expansion highlights6 records
西日本貿易（株） competitors and assessment
Company assessmentBroad incumbents
- Sojitz Corporation: Major Japanese sogo shosha with extensive China operations, industrial machinery trading, and overseas project execution. Comparable as a Japan-China industrial trading intermediary, but operates at far larger scale with diversified global footprint rather than China-specialized niche focus.
- Kanematsu Corporation: Japanese trading company (medium-sized sogo shosha) with electronics, chemicals, machinery, and food trading operations. Comparable in product mix overlap (machinery, chemicals, electronics) and B2B trading model serving Japanese manufacturers.
- Hanwa Co., Ltd. Japanese trading company focused on steel, metals, industrial machinery, and overseas trading with operations across Asia. Comparable as a Japan-based B2B trading company serving industrial customers with cross-border sourcing capability.
- Toyota Tsusho Corporation: Japanese sogo shosha with strong industrial machinery, automotive parts, and chemicals trading. Overlaps with Western Japan Trading's core categories of industrial machinery, automotive components, and semiconductor materials trading between Japan and overseas markets.
- Marubeni Corporation: Major Japanese sogo shosha with industrial machinery, chemicals, electronics, and Asia trading operations. Comparable at the broad trading industry level, though Marubeni operates at much larger scale and broader geographic diversification.
- ITOCHU Corporation: One of Japan's largest sogo shosha with extensive machinery, chemicals, electronics, and Asia-China operations. Comparable only at the broad industry level — much larger and more diversified than Western Japan Trading's specialized Japan-China focus.
Direct peers
- Trusco Nakayama Corporation: Japanese industrial tools, machinery, and MRO supplies distributor. Comparable as a B2B industrial products trading company serving Japanese manufacturers with machine tools, machinery, and related industrial supply categories.
- Meiwa Corporation: Japanese trading company specializing in machinery, chemicals, and raw materials trading between Japan and overseas markets. Comparable as a mid-sized Japan-based trading company with similar product categories and import/export business model.
- Chori Co., Ltd. Japanese trading company with chemicals, textiles, machinery, and overseas sourcing operations. Comparable as a mid-sized Japanese trading company with cross-border B2B trading model similar to Western Japan Trading's Japan-China focus.
- Yamazen Corporation: Japanese industrial machinery and tools distributor with sourcing from Asian manufacturers. Overlaps with Western Japan Trading's machinery trading, OEM matching, and industrial equipment distribution activities targeting Japanese manufacturers.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks5 records
Key highlights6 records
Customer concentration
西日本貿易（株） social profiles
Digital presence西日本貿易（株） compliance and trust
Trust signalCompliance6 records
西日本貿易（株） financial estimates
Financial estimateRevenue estimate
Valuation estimate
西日本貿易（株） leadership team
Management profileNumber of profiles
Profiles4 records
西日本貿易（株） subsidiaries and ownership
Company hierarchySubsidiaries11 records
西日本貿易（株） funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
西日本貿易（株） M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about 西日本貿易（株）
What does 西日本貿易（株） do?
Western Japan Trading Co., Ltd. is a China-specialized general trading company (sogo shosha) founded in 1961 that imports industrial machinery, machine parts, electronic components, semiconductor materials, chemical products, mineral products, lithium-ion batteries, and industrial materials from China to Japan, while exporting Japanese machinery, tools, precision equipment, chemicals, and industrial products to China. The company also provides agency services including dangerous goods import/export handling, China NMPA cosmetic raw material registration, OEM partner selection, plant equipment proposals, and after-sales automation support through its Ichiwa Technology subsidiary.
Is 西日本貿易（株） a public or private company?
西日本貿易（株） is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was 西日本貿易（株） founded?
西日本貿易（株） was founded in 1961. It employs 11 to 50 people.
Where is 西日本貿易（株） based?
西日本貿易（株） is headquartered in Osaka (Head Office), Japan, in the Asia region.
How does 西日本貿易（株） make money?
Four revenue lines are on record. Import Trading (China to Japan) is the primary driver. The others are export Trading (Japan to China), trading Commission and Agent Services and after-Sales and Technical Services.
Who are 西日本貿易（株）'s main competitors?
Broad incumbents on record are Sojitz Corporation, Kanematsu Corporation, Hanwa Co., Ltd., Toyota Tsusho Corporation, Marubeni Corporation and ITOCHU Corporation. Direct peers are Trusco Nakayama Corporation, Meiwa Corporation, Chori Co., Ltd. and Yamazen Corporation.
Does 西日本貿易（株） have an API?
No public API is recorded for 西日本貿易（株）.
What industry is 西日本貿易（株） in?
西日本貿易（株）'s product category is International Trade Services. Its primary akta.pro industry code is TLAEAOAF, Trade Document Generation & Management (Commercial Invoice, Packing List, COO, Certificates), with a secondary code of TLAEAOAC, Tariff Classification & HS/HTS Automation. Its NAICS code is 42383 and its SIC code is 5084.