Tatsumi Chemical Co.

What Tatsumi Chemical Co. does

Tatsumi Chemical Co., Ltd. (辰巳化学株式会社) is a Japanese generic pharmaceutical manufacturer founded in July 1941 in Kanazawa, Ishikawa Prefecture. The company develops, manufactures, and markets approximately 250 types of generic medicines (後発医薬品) under the TCK brand suffix, with key therapeutic focus areas including cardiovascular (25% of portfolio), digestive (15%), and central nervous system (13%) medications spanning 15+ therapeutic categories. Dosage forms include tablets (including orally disintegrating tablets), capsules, granules, powders, and ointments, supplied to medical institutions and pharmacies throughout Japan under the National Health Insurance system's regulated pricing framework, where generics are priced at approximately 40-50% of brand-name equivalents.

Name

Tatsumi Chemical Co.

Legal name

辰巳化学株式会社

Website

https://tatsumi-kagaku.com

Company type

Private

Founded year

1941

Operating status

Operating

Headcount range

251–500 employees

Short description

Tatsumi Chemical Co., Ltd. is a Japanese generic pharmaceutical manufacturer founded in 1941, producing approximately 250 generic medicines in tablets, capsules, granules, powders, and ointments for medical institutions nationwide through 120+ sales agents.

Ownership category

akta.pro rank

Product category

Generic Pharmaceuticals

NAICS

Pharmaceutical Preparation Manufacturing (325412), Pharmaceutical and Medicine Manufacturing (32541)

SIC

Pharmaceutical Preparations (2834), Wholesale-Drugs, Proprietaries & Druggists' Sundries (5122)

akta.pro primary industry

Oral Solid Dose (OSD) Generics (HLAIABAD)

akta.pro secondary industries

Generic Finished Dosage Form (FDF) Manufacturing (HLAIABAH), Generic Hospital & Institutional Products (HLAIABAL)

Keywords

• Generic pharmaceuticals
• Oral solid dosage forms
• Pharmaceutical manufacturing
• Prescription medicines
• Ethical drug production

Headquarters

HQ city

Kanazawa

HQ country

Japan

HQ region

Asia

Offices11 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Pharmaceutical product sales: Tatsumi Chemical manufactures and sells generic pharmaceutical products (ethical drugs) to medical institutions and pharmacies throughout Japan. The company also exports its products.

Go-to-market motion2 records

Distribution channels6 records

Marketing channels5 records

Core offering

Tatsumi Chemical Co. manufactures and sells generic prescription medicines (ethical drugs) in solid oral dosage forms including tablets, capsules, granules, and powders, as well as ointments. The company supplies approximately 250 kinds of generic medicines covering cardiovascular (25%), digestive (15%), and central nervous system (13%) therapeutic areas to medical institutions across Japan through direct sales offices, regional branches, and a network of approximately 120 sales agents and distributors.

Product overview

Tatsumi Chemical Co., Ltd. is a Japanese generic pharmaceutical manufacturer supplying approximately 250 kinds of generic medicines under TCK branding. The product portfolio includes cardiovascular medicines (25%), digestive medicines (15%), and central nervous system medicines (13%), spanning over 15 therapeutic categories. Medicinal forms encompass tablets (including orally disintegrating tablets), capsules, granules, powders, and ointments. Production is centered at the Matto Daiichi Factory in Hakusan City, Ishikawa Prefecture, featuring GMP and PIC/S compliant facilities (Buildings M and P). Products are distributed nationwide through approximately 120 sales agents and subsidiaries including Tatsumi Chemical Logistics, Tatsumi Iyaku Hokuriku Sales, Shinko Medical, and Tatsumi Isen.

Differentiator

Problem solved

Functional benefit

Brands

• TCK: Product brand suffix used for generic pharmaceutical products (e.g., アムロジピン錠5mg「TCK」). TCK appears to be the company's product brand designation for its generic pharmaceutical products distributed in Japan.

Products and services

• Generic Pharmaceutical Products (TCK-branded) Generic prescription medicines (ethical drugs) supplied to medical institutions, pharmacies, and healthcare providers across Japan. The product range spans 250+ generic medicines across cardiovascular, digestive, and central nervous system therapeutic categories with more than 15 types of medicinal effects and multiple dosage forms including tablets, capsules, granules, powders, and ointments. All products carry the TCK brand suffix and are bioequivalent to originator drugs.

Named customers1 record

Segments1 record

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Five partnerships are on record, tiered subsidiary/internal and core.

• Tatsumi Kagaku Logistics Co., Ltd.subsidiary/internalChannel Partner/ Reseller/ DistributorA logistics subsidiary of Tatsumi Chemical handling distribution and warehousing operations, primarily serving the West Tokyo region from their office in Machida, Tokyo.
• Tatsumi Medical Hokuriku Sales Co., Ltd.subsidiary/internalChannel Partner/ Reseller/ DistributorA sales subsidiary covering the Hokuriku region (Ishikawa prefecture and surrounding areas), operating from an office in Kanazawa, Ishikawa.
• Shinko Medical Co., Ltd.coreChannel Partner/ Reseller/ DistributorA sales agent handling distribution in the Tokai region (Aichi prefecture and surrounding areas) from an office in Nagoya, Aichi.
• Tatsumi Isen Co., Ltd.coreChannel Partner/ Reseller/ DistributorA sales agent handling distribution in the Kansai region (Osaka and surrounding areas) from an office in Osaka.
• Japan Generic Pharmaceutical Association (JGA)coreOthersTatsumi Chemical is a member of the Japan Generic Pharmaceutical Association, an industry organization that promotes generic drug usage, shares industry information, publishes educational materials, and conducts public awareness campaigns about generic medicines.

Scale indicators7 records

Recent moves14 records

Expansion highlights5 records

Direct peers

• Sawai Group Holdings: Japan's largest generic pharmaceutical manufacturer by sales. Directly comparable to Tatsumi in product category (oral solid generics) and target customer (medical institutions in Japan), with a substantially larger portfolio and broader scale.
• Towa Pharmaceutical: Major Japanese generic drug manufacturer producing a wide range of oral solid dosage forms supplied to medical institutions nationwide. Closely comparable in product mix (oral generics), regulatory positioning, and customer base (hospitals/clinics/pharmacies in Japan).
• Nichi-Iko Pharmaceutical: One of Japan's leading generic manufacturers with a broad portfolio of generic pharmaceuticals distributed to medical institutions. Directly comparable to Tatsumi across product category (oral solid generics), therapeutic areas, and domestic Japanese distribution model.

Broad incumbents

• Kyowa Kirin: Major Japanese pharmaceutical company with established generics and biosimilars operations as part of a broader specialty pharma portfolio. Comparable as an incumbent Japanese pharma with generic capabilities, though larger and more diversified than Tatsumi.
• Teva Pharmaceutical Industries: World's largest generic pharmaceutical manufacturer with significant global footprint and operations in Japan. Comparable in product category (broad generic portfolio, oral solid dosage forms) but operates at global scale and is a broad incumbent rather than a focused domestic Japanese player.
• Zydus Lifesciences: India-headquartered global generic pharmaceutical manufacturer producing a wide range of finished dosage forms. Comparable in product category (oral solid generics, multiple therapeutic areas) and manufacturing footprint, but operates as a broad emerging global incumbent rather than Japan-domestic focused.
• Meiji Seika Pharma: Japanese pharmaceutical company with both branded and generic pharmaceutical operations as part of the broader Meiji group. Comparable in domestic Japanese generics manufacturing and distribution to medical institutions, though operates as part of a larger diversified group.
• Daiichi Sankyo Espha (generic subsidiary): Generic pharmaceutical subsidiary of major Japanese pharmaceutical company Daiichi Sankyo, producing and distributing generic medicines to medical institutions across Japan. Comparable in product category and customer base; part of a much larger pharmaceutical group.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/watch?v=HJwByJLs334
• Instagraminstagram.com/tatsumi_kagaku

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries2 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 Tatsumi Chemical Co.