JET

What JET does

JET Co., Ltd. (株式会社ジェイ・イー・ティ, TSE Standard Market ticker 6228) designs, manufactures, and sells customized semiconductor wet-cleaning equipment for front-end fabrication processes, headquartered in Satosho-cho, Asakuchi-gun, Okayama, Japan. The company was founded in April 2009 by Korea's ZEUS Co., Ltd. to acquire the semiconductor cleaning equipment business of the bankrupt S.E.S. Co., Ltd. (formerly JASDAQ-listed and a historical supplier to Samsung Electronics), inheriting subsidiaries in Taiwan, China, and Korea.

JET's equipment portfolio comprises batch-type cleaning systems (BW3700/BW3000 for 300mm wafers; BW2000 for 200mm wafers) with configurable tank arrangements, 7mm wafer pitch processing, and up to 500 WPH throughput on the BW3000; single-wafer cleaning systems (HTS-300) using proprietary infrared-lamp heater technology to deliver up to 240°C processing, ≤150cc chemical consumption per wafer, and ~30-second strip cycles; and the HTS EcO3 family, which enables resist stripping without sulfuric acid or hydrogen peroxide. The company also sells the ELC-J1000 electrolyte leak inspection system and UWS-J1000 ultrasonic welding system for lithium-ion battery manufacturers, including for all-solid-state battery applications. A separate subsidiary, J.E.T. Agri, cultivates and sells Tomapical brand high-sugar-content tomatoes and Tomapical Nectar juice via EC and crowdfunding channels; the subsidiary also won a Gold Award at the 5th National Mini Tomato Championship in 2026.

JET generates revenue primarily through direct enterprise field sales of customized equipment on a quote basis to major semiconductor fabs in Korea, China, Taiwan, Japan, and the United States, supplemented by after-sales services (equipment modification, parts supply, operator training, and on-site maintenance). The company maintains 20+ offices and wholly-owned subsidiaries across these geographies, supported by ISO 9001 (JQA-QM3295) and ISO 14001 (JQA-EM7943, obtained November 2024) certifications. As of December 2025 the company employed 160 staff on a standalone basis and 275 on a consolidated basis, and in January 2026 received Okayama Prefecture Large Investment Subsidy approval for a DEMO cleanroom expansion at its headquarters site, signaling a forward capacity build-out following a post-IPO leadership transition in early 2025.

Name

JET

Legal name

株式会社ジェイ・イー・ティ

Website

https://globaljet.jp

Company type

Public

Founded year

2009

Operating status

Operating

Short description

JET Co., Ltd. designs and manufactures customized semiconductor wet-cleaning equipment — batch (BW series) and single-wafer (HTS-300, HTS EcO3) — plus lithium-ion battery inspection systems, selling directly to major semiconductor fabs across East Asia, Japan, and the United States. Headquartered in Okayama, Japan; listed on TSE Standard Market (6228).

Ownership category

akta.pro rank

Product category

Semiconductor Manufacturing Equipment

NAICS

Semiconductor Machinery Manufacturing (333242), Other General Purpose Machinery Manufacturing (3339)

SIC

Special Industry Machinery (No Metalworking Machinery) (3550), Semiconductors & Related Devices (3674)

akta.pro primary industry

Wafer Cleaning & Surface Preparation Equipment (HDAHAEAG)

akta.pro secondary industry

Test, Measurement & Calibration Equipment Manufacturing Services (ATE, DAQ, metrology electronics) (IMAGAGAH)

Keywords

• Semiconductor cleaning equipment
• Wafer processing systems
• Battery inspection equipment
• Ultrasonic welding systems
• Single-wafer cleaning

Headquarters

HQ city

Okayama

HQ country

Japan

HQ region

Asia

Offices20 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales

Revenue model

1. Semiconductor Cleaning Equipment (Development, Design, Manufacturing, Sales): Customized semiconductor cleaning equipment sold directly to semiconductor manufacturers in Korea, China, Taiwan, Japan, and the US. Revenue is generated from equipment sales with customization based on customer specifications.
2. After-sales Service, Maintenance, and Parts: Field services including equipment modification, parts sales, and maintenance services provided at customer factories. This includes operation training for end users, failure repair services, and parts supply.
3. LIB Inspection and Manufacturing Equipment: Lithium-ion battery inspection and manufacturing equipment (electrolyte leak inspection, ultrasonic welding systems) sold to battery manufacturers. Also extending to all-solid-state battery applications.
4. Agricultural Products (Tomato Cultivation): Subsidiary J.E.T. Agri produces high-sugar-content tomatoes (Tomapical brand) and Tomapical Nectar juice, sold via EC site and crowdfunding platforms.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels7 records

Core offering

JET designs, manufactures, and sells customized semiconductor cleaning equipment — including batch-type systems (BW3700, BW3000, BW2000) and single-wafer hot-plate systems (HTS-300) — for front-end wafer fabrication processes. The company also produces lithium-ion battery (LIB) inspection and manufacturing equipment such as the ELC-J1000 electrolyte leak inspector and UWS-J1000 ultrasonic welder. Through its J.E.T. Agri subsidiary, it operates a high-sugar tomato cultivation business marketed under the Tomapical brand.

Product overview

JET develops, designs, manufactures, and sells semiconductor cleaning equipment and related services. The product portfolio consists of two main equipment categories: batch-type cleaning equipment (BW3700, BW3000, BW2000) for simultaneous multi-wafer processing, and single-wafer cleaning equipment (HTS-300) for individual wafer processing. Additionally, the company operates a lithium-ion battery (LIB) inspection and manufacturing equipment business featuring the ELC-J1000 electrolyte leak inspection system and UWS-J1000 ultrasonic welding system. JET also runs an agriculture (agri) business through its subsidiary JET Agri, producing premium tomatoes under the Tomapical brand and related products like Tomapical Nectar juice. The company serves semiconductor manufacturers primarily in Korea, China, and Taiwan, with expanding presence in Japan and the US market.

Differentiator

Problem solved

Functional benefit

Brands

• Tomapical (トマピカル): High-brix fruit tomato brand produced by subsidiary J.E.T. Agri; also marketed as Tomapical Nectar juice.

Products and services

• BW3700 Batch Cleaning Equipment (バッチ式洗浄装置 BW3700)
• BW3000 Batch Cleaning Equipment (バッチ式洗浄装置 BW3000)
• BW2000 Batch Cleaning Equipment (バッチ式洗浄装置 BW2000)
• HTS-300 Single-Wafer Cleaning Equipment (枚葉式洗浄装置 HTS-300)
• ELC-J1000 Electrolyte Leak Inspection Equipment (電解液リーク検査装置 ELC-J1000)
• UWS-J1000 Ultrasonic Welding System (超音波接合システム UWS-J1000)
• Tomapical High-Sugar Tomatoes (トマピカル)
• Tomapical Nectar Tomato Juice (トマピカルネクター)
• Semiconductor Cleaning Equipment After-Sales Service, Parts and Maintenance

Quantifiable outcome

• Cleaning processes account for 30-40% of all front-end semiconductor manufacturing processes (500+ total processes)
• +4 more outcomes

Named customers1 record

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators8 records

Recent moves12 records

Expansion highlights5 records

Broad incumbents

• Hitachi High-Tech: Japan-based broad-line semiconductor equipment and electronic systems company with cleaning, inspection, and metrology offerings. Competes with JET in select cleaning sockets while operating a much wider portfolio.
• Tokyo Electron: One of the world's largest semiconductor equipment makers, with a strong coater/developer and cleaning franchise. Overlaps with JET in wafer cleaning but operates as a broad-line incumbent across deposition, etch, lithography track, and cleaning.
• Applied Materials: Largest global semiconductor equipment company with a broad portfolio that includes wet clean tools. Competes with JET on the high-end single-wafer cleaning category while also offering deposition, etch, CMP, and inspection.

Emerging players

• ACM Research: US-listed, China-based supplier of single-wafer wet cleaning equipment to advanced semiconductor fabs. Closest emerging competitive threat to JET in advanced-node cleaning, with comparable product positioning but much larger scale and US capital access.
• PSK Inc. Korean semiconductor equipment maker focused on surface treatment and cleaning, including emerging advanced-node applications. Comparable mid-cap, niche specialist positioning to JET with overlap in Korea customer base.

Direct peers

• Shibaura Mechatronics: Japan-based niche semiconductor equipment maker (formerly Shibaura Engineering Works) with comparable mid-cap scale to JET. Overlaps in wet process equipment for semiconductor and FPD manufacturing, and similar customer profile of East Asian fabs.
• Lam Research: US-based leader in wafer fabrication equipment including single-wafer wet clean (Lam Research Kiyo and Da Vinci product families). Directly competes with JET's HTS-300 single-wafer platform for high-end cleaning sockets.
• SCREEN Holdings: Japan-based global leader in semiconductor wafer cleaning equipment. Direct competitor to JET in batch and single-wafer cleaning, with broader portfolio and deeper installed base. Most analogous pure-play in the niche.

Regional players

• NAURA Technology Group: China's largest semiconductor equipment maker, increasingly a substitute for foreign cleaning tools in Chinese fabs. Competes with JET in China but is favored under China's indigenous equipment substitution policy, squeezing JET's China business.
• KCTech: Korean semiconductor equipment manufacturer specializing in cleaning, etch, and surface treatment tools. A regional peer for JET in the Korean market, sharing Samsung/SK Hynix as customer targets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights6 records

Customer concentration

• Instagraminstagram.com/jet.agri

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Subsidiaries6 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about JET