Showa Chemical Industry

What Showa Chemical Industry does

Showa Chemical Industry Co., Ltd. (昭和化学工業株式会社) is a Japanese specialty chemical manufacturer founded in 1933 and listed on the Tokyo Stock Exchange Standard Market under ticker 4990. The company specializes in diatomite (珪藻土) and perlite (パーライト) mineral products, leveraging a proprietary powder control technology developed over 90 years to produce porous, micron-to-sub-micron pore structure materials. Core branded product lines include RADIOLITE (diatomite-fired and flux-calcined filter aids), TOPCO Perlite (expanded perlite filter aids and aggregates), and HardLite (inorganic hollow balloons developed as a stable alternative to fly ash balloons using domestic perlite and Shirasu). Beyond filter aids, the company supplies functional fillers for resins, plastics, rubber, and paper; chemical products such as Bug Fixer; and operates contract calcination, filter aid selection services, IT infrastructure maintenance, and custom design bathroom businesses through its Tokyo Bath Style joint venture.\n\nThe company's revenue model combines a manufacturer division (approximately 70% of sales) and a trading/merchant division (approximately 30%), distributed via direct field sales offices in Tokyo, Osaka, and Fukuoka and a prefecture-by-prefecture distributor network reaching approximately 5,000 domestic delivery destinations. Geographic mix is approximately 80% Japan / 20% overseas, with a sales subsidiary in Beijing (RTC, established 2010). Operations are anchored by five domestic manufacturing bases (Akita, Okayama/Oita and others) operating continuous production, plus a dedicated Research and Analysis Center in Kurayoshi, Tottori equipped with SEM, X-ray diffraction, X-ray fluorescence, and chromatographic instrumentation. Customers span food and beverage processing (sake, bio-reactors), pharmaceuticals (high-purity filtration), construction (lightweight aggregates), consumer environmental products, and industrial filler applications, served predominantly through B2B long-tail relationships anchored by technical-service-driven account management.

Name

Showa Chemical Industry

Legal name

昭和化学工業株式会社

Website

https://showa-chemical.co.jp

Company type

Public

Founded year

1933

Operating status

Operating

Headcount range

11–50 employees

Short description

Showa Chemical Industry Co., Ltd. is a Tokyo Stock Exchange-listed Japanese specialty chemical manufacturer (founded 1933) producing diatomite and perlite-based filter aids, fillers, and inorganic hollow balloons under brands such as RADIOLITE, TOPCO, and HardLite for food/beverage, pharmaceutical, construction, and industrial customers across approximately 5,000 domestic delivery points and select overseas markets.

Ownership category

akta.pro rank

Headquarters

HQ city

Akasaka

HQ country

Japan

HQ region

Asia

Offices9 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Manufacturing Sales: Direct sales of proprietary diatomaceous earth and perlite products including filter aids, fillers, solutions, and chemical products. Represents 70% of total sales revenue.
2. Trading/Merchant Sales: Sales of complementary products from partner companies through trading operations. Represents 30% of total sales revenue.
3. IT Infrastructure Maintenance Services: IT infrastructure maintenance business providing support services.
4. Design Bathroom Business: Custom design bathroom unit sales through joint venture Tokyo Bath Style, including care unit bathrooms and residential/hotel bathrooms.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Showa Chemical Industry mines, processes, and manufactures diatomaceous earth (diatomite) and perlite-based products for industrial applications. Its core portfolio includes filter aids (RADIOLITE and TOPCO Perlite brands), inorganic hollow balloons (HardLite), functional fillers, chemical products, and agricultural soil improvement materials. The company also provides technical services such as filter aid selection, contract calcination, filler product development and quality testing, and IT infrastructure maintenance.

Product overview

Showa Chemical Industry is a diversified chemical manufacturer specializing in diatomite and perlite mineral products. The core product portfolio centers on filtration aids (RADIOLITE, TOPCO Perlite) and inorganic hollow balloons (HardLite), complemented by filler materials, chemical products, and specialized services including filter aid selection consultation, contract calcination, and R&D support. The company also offers IT infrastructure maintenance services and design bathroom products through partnerships. The products share diatomite and perlite as foundational mineral materials, with operations spanning from raw material extraction through manufacturing and technical service support.

Differentiator

Problem solved

Functional benefit

Brands

• RADIOLITE (ラヂオライト): Registered trademark of Showa Chemical Industry Co., Ltd. Diatomite fired filter aid product brand.
• HardLite (ハードライト)
• TOPCO (トプコ)
• 日本パーライト

Products and services

• RADIOLITE (ラヂオライト) Filter Aids Diatomite-based filter aid products in fired, flux-calcined (RADIOLITE F), and granular (RC417) forms. Used as filtration media and carriers in food processing, beverage clarification including sake, pharmaceutical manufacturing, and various industrial separation applications.
• TOPCO Perlite (トプコパーライト) Filter Aids Perlite-based filter aid products made from expanded volcanic glass, including TOPCO Perlite #31 (expanded pearlite). Used for filtration, insulation, and as industrial fillers.
• HardLite (ハードライト) Inorganic Hollow Balloons Inorganic hollow balloon products developed as a stable alternative to fly ash balloons. Made from domestic volcanic rock glass-based perlite and Shirasu, offering high heat resistance and chemical stability for lightweight material applications across various industries.
• Filler and Filling Materials Diatomite and perlite-based filler materials used as bulking agents with high water and oil absorption. Applied in resins, rubber, plastics, papermaking, and various industrial applications for weight augmentation and functional enhancement.
• Chemical Products (化成品) Various chemical products leveraging the porous properties of diatomite, including Bug Fixer pest control agent, deodorant products, and other functional chemical formulations for living and environmental applications.
• ClearMist Plus (クリアミストプラス) Acidified alcohol preparation based on sugarcane-derived fermented alcohol, enhanced with grapefruit extract and organic acids. Used for virus prevention applications in direct food spray and equipment sanitization.
• Agricultural and Horticultural Soil Improvement Materials Soil improvement materials utilizing diatomite properties for agricultural and greening applications, supporting water retention and soil aeration.
• Filter Aid Selection Service Technical consultation service helping customers select optimal filter aids for their specific filtration applications. Research and Analysis Center equipped with candle filter and precoat filter testing equipment to reproduce customer filtration conditions.
• Contract Calcination Services (受託焼成) Contract firing and calcination services for customers requiring specialized thermal processing of mineral-based materials.
• Filler Product Development and Quality Testing Services Comprehensive R&D and quality testing services for filler products, including custom development and specialized quality verification testing using electron microscopy, X-ray diffraction, X-ray fluorescence, and other analytical equipment.
• IT Infrastructure Maintenance Services IT infrastructure maintenance and support services for business operations, including system management, security, and technical support services.
• Design Bathroom Units - Tokyo Bath Style Custom-designed unit bathroom products developed in partnership with Tokyo Bath Style Co., Ltd. (joint venture). Offers high-design bathroom solutions including care unit baths for medical facilities and residential/hotel applications.

Quantifiable outcome

• Revenue growth from 92 billion yen (FY2025 est.) to 110 billion yen (+19%) by FY2030
• +2 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Seven partnerships are on record, tiered core, secondary and supporting.

• Maniwatt Power Co., Ltd. (まにわっと電力株式会社)coreStrategic or Co-development Partner · 29 August 2025Regional power company in Maniwa, Tottori Prefecture. Showa Chemical invested in and partnered with for local power supply and renewable energy initiatives supporting sustainability goals.
• RTC社 (RTC Co., Ltd.)coreStrategic or Co-development Partner · 1 January 2010Sales subsidiary established in China in 2010, marking the company's formal entry into overseas business. Serves as the center for overseas business expansion with operations in Beijing. Part of the company's global growth strategy toward 2030.
• Tokyo Bath Style Co., Ltd. (株式会社東京バススタイル)coreStrategic or Co-development PartnerJoint venture partner for custom design bathroom unit business (Tokyo Bath Style brand). Handles residential, hotel, and care unit bathroom products. Showroom located in Shirokane, Tokyo.
• Hasegawa Corporation (株式会社ハセガワ)secondaryChannel Partner/ Reseller/ DistributorManufacturing partner for Clear Mist Plus product - an acidified alcohol preparation based on sugarcane-derived fermented alcohol with grapefruit extract for virus prevention applications.
• India-based CompanysecondaryTechnology or IntegrationTechnology transfer agreement for perlite filter aid manufacturing technology to Indian company (announced March 2017).
• International Diatomite Producers Association (IDPA)supportingStrategic or Co-development PartnerMember of international industry association conducting joint safety research and sharing latest international information on diatomite product safety.
• Tottori Prefecture and Local CommunitiessupportingOthersOngoing partnerships with local communities including nature conservation (Hiruzen site), environmental restoration of exhausted mining sites, and academic site provision for educational purposes.

Scale indicators12 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Dicaperl Minerals: Manufacturer of diatomite and perlite mineral products including filter aids and functional fillers. Comparable niche specialty mineral manufacturer competing in similar end-markets.
• CECA (Arkema Specialty Filtration): Arkema subsidiary producing diatomite-based filtration aids and adsorbents for industrial and food/beverage applications. Direct competitor in the global filter aid market where Showa Chemical competes.
• Imerys: Global French-listed leader in mineral-based specialty solutions including diatomite filter aids (Celite brand), perlite, and functional fillers. Directly competes with Showa Chemical in filtration aids across food, beverage, and pharmaceutical applications worldwide.
• EP Minerals (U.S. Silica Holdings): Major US-based diatomite and perlite producer serving filtration, functional filler, and industrial markets. Now part of U.S. Silica; directly comparable product portfolio and customer verticals to Showa Chemical.
• Dicalite Minerals (Dicalite Management Group): US-based producer of diatomaceous earth filter aids, perlite, and functional fillers for beverage, pharma, and industrial applications. Directly overlaps with Showa Chemical's RADIOLITE and TOPCO product lines.

Broad incumbents

• Minerals Technologies Inc. US-listed specialty mineral company with broader product portfolio including precipitated calcium carbonate, bentonite, and specialty mineral-based products. Operates in adjacent functional filler and mineral processing space but with much larger scale.
• Calgon Carbon Corporation (Kuraray): Leading activated carbon and filtration media producer serving water, food, and industrial markets. Comparable in filtration media end-uses though focused on carbon rather than diatomite/perlite.
• Toyo Seikan Group Holdings: Japanese packaging and materials conglomerate with operations in functional materials including specialty fillers and filtration products. Comparable as a Japanese diversified industrial materials player, though much larger scale and broader portfolio.

Emerging players

• Perlite-Hellas: Greek perlite producer and exporter serving construction, filtration, and industrial markets. Comparable in perlite-focused product line and serves similar international markets, but smaller scale.

Regional players

• Anhui Fitech Materials Co. Chinese diatomite and perlite product manufacturer serving food, beverage, and industrial filtration markets primarily in China. Operates in the same Showa Chemical overseas territory (China) and competes for similar Asian customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Customer concentration

• LinkedInlinkedin.com/company/radiolite-trading-co.

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries3 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 Showa Chemical Industry