Reliable sourcing of metals and industrial materials.

S INC Corporation is a Tokyo-based trading company connecting Japan, ASEAN, and the Middle East — handling copper cathodes, copper scrap, and other non-ferrous metals and industrial materials end to end, from sourcing through export and logistics.

Why S Inc.

"Go to the site. Verify the goods. Deliver as promised."

The foundation of our business since day one.

01

Quality control on the ground

We verify the goods, inspect, and document. You get what the specification says — with inspection records and photos as evidence of the transaction.

02

Hands-on export experience

Since 2014, we have built practical international logistics and export experience through our used vehicle business. That experience underpins how we trade metals and industrial materials.

03

A principal handles your deal

For custom specifications and deals that need flexibility — the kind larger houses struggle with — a responsible principal handles it directly, from spec check through shipment.

Core Business

What We Do

Copper & Non-Ferrous Metals

Copper cathodes and copper wire scrap as our core line, alongside other non-ferrous metals and raw materials.

Petroleum & Chemical Products

Industrial petroleum and chemical products — base oil, urea (AdBlue / DEF), and lubricants.

International Trade & Logistics

One-stop execution: contracts, shipping documents, and transport arrangements.

Flagship Product

Copper Cathodes

Our core line. Substantial lots delivered with certificates of analysis and inspection records.

Bundled copper cathodes
Quality
LME Grade A equiv.Cu 99.95% min
Lot size
From 100 MTper lot
Supply capacity
Approx. 500 MT/monthcontinuous supply available

We also handle copper wire scrap (Millberry and other grades), serving smelting and brass mill demand. Destination, packing, and shipment schedule are arranged to your requirements.

Inquire about copper cathodes
Products

Main Products

Specifications available on request. Ask us about products not listed here.

Copper Wire Scrap (Millberry)
Non-Ferrous Metals

Copper Wire Scrap (Millberry)

Wire rod, brass mills, and smelting feedstock

Specification available

Aluminum Ingots & Alloys
Non-Ferrous Metals

Aluminum Ingots & Alloys

Casting, die-casting, and secondary alloy feedstock

Specification available

Urea & Urea Solution (AdBlue / DEF)
Petroleum & Chemical Products

Urea & Urea Solution (AdBlue / DEF)

SCR diesel exhaust treatment, fertilizer, and industrial feedstock

Specification available

Lubricants
Petroleum & Chemical Products

Lubricants

Industrial machinery, automotive, and marine

Specification available

Trade Process

How We Work

Each transaction is tailored to customer requirements.

  1. 1

    Inquiry

    Tell us the product, quantity, and destination you need.

  2. 2

    Specification & Quotation

    We confirm specs, analysis data, and photos, then quote.

  3. 3

    Contract

    We agree on Incoterms and payment terms, then sign.

  4. 4

    Shipping & Documentation

    Inspection and loading records with a full document set.

  5. 5

    Delivery & Follow-up

    We track the cargo to arrival and follow up for the next deal.

Trading Regions

Where We Trade

Japan

Our home market — the sourcing network and quality control that anchor every export.

ASEAN

Supplying the growing manufacturing demand in Vietnam, Thailand, Malaysia, and beyond.

Middle East

Serving re-export hubs and industrial demand in the UAE, Saudi Arabia, and the region.

Latest Resources

Field Reports

First-hand reports from the field — factory visits, inspections, and container loading — based on facts.

Currently in preparation — our first reports are on the way.

View all

Business Division

Used Vehicle Export Division

Since our founding in 2014, we have operated a used vehicle export business. For used vehicle inquiries, please visit the dedicated site.

Visit the used vehicle site ↗

Tell us what you need — product, quantity, destination.

Copper cathodes available from 100 MT lots. Response within one business day.

Contact Us
Company Overview

Company Overview

Corporate data as registered with the Japanese authorities.

Company nameS INC Corporation (株式会社S Inc.)
EstablishedJuly 24, 2014
Business
  • Trading of copper cathodes and copper wire scrap
  • Other non-ferrous metals and metal raw materials
  • Petroleum and chemical products
  • International trade and logistics services
  • Used vehicle export (separate division)
RepresentativeNaoki Yoshida, Representative Director
AddressRm. 1104, Kintetsu Toranomon Bldg., 3-8-25 Toranomon, Minato-ku, Tokyo 105-0001, Japan
Telephone+81-3-6555-5468
Fax+81-3-6555-5478
Emailsales@sinccorporation.jp
Office hours8:00–17:00 JST (Closed Sat & Sun)
Corporate number3010401113322
CapitalJPY 1,000,000
Fiscal year-endFebruary
Banks
  • The Joyo Bank
  • The Shoko Chukin Bank
  • MUFG Bank
  • The Ashikaga Bank

Corporate number 3010401113322 can be verified on Japan's National Tax Agency corporate number database.