Introduction of Our Businessfor 1st Half of FYE 3/2021
November 6th, 2020
STELLA CHEMIFA CORPORATION
Securities code: 4109

Corporate Profile(as of September 30, 2020)
Corporate NameSTELLA CHEMIFA CORPORATIONHead Of f ice

Meiji Yasuda Seimei Osaka Midosuji Bldg. 10F,
4-1-1 Fushimi-machi, Chuo-ku, Osaka City, Osaka

Founded/EstablishedFebruary 1916 / February 1944

Capital Fund

4,829,782,512 yen

Representatives

Representative Director, President and Chief Executive Officer: Aki Hashimoto
Representative Director, Senior Managing Executive Officer(Products Management Group): Kiyonori Saka

URL

https://www.stella-chemifa.co.jp/english/

Number ofEmployees

300

Sales Department

Osaka Sales Department (Chuo-ku, Osaka city, Osaka)
Tokyo Sales Department (Chiyoda-ku, Tokyo)

F a c t o r y

Sanpo Factory(Sakai-ku, Sakai City, Osaka)
Izumi Factory (Izumiotsu City, Osaka)
Kitakyushu Factory (Yahatanishi-ku, Kitakyushu City, Fukuoka)
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Subsidiaries & Associates
At home (3 companies)
Transportation BusinessBLUE EXPRESS, Inc.

Sakai-ku, Sakai City, Osaka

O the rB usi ne ss

BLUE AUTO TRUST Co., Ltd.

Sakai-ku, Sakai City, Osaka

MedicalBusiness

STELLA PHARMA CORPORATION

Chuo-ku, Osaka city, Osaka

Abroad (7 companies)
High-Purity Chemical Business

STELLA CHEMIFA SINGAPORE PTE LTD

Singapore

Transportation Business

STELLA EXPRESS (Singapore) PTE LTD

Singapore

High-Purity Chemical BusinessBlue Express (Shanghai) International Trade Inc.

China

Transportation BusinessBlue Express (Shanghai) International Freight Forwarding Co., Ltd.

China

High-Purity Chemical Business

Zhejiang Blue Star Chemical Co., Ltd.

China

High-Purity Chemical Business

FECT CO.,LTD

South Korea

High-Purity Chemical Business

Quzhou BDX New Chemical Materials Co., Ltd.

China3Introduction of Our Business
Manufacture and applications of hydrogen fluoride

CaF2
Calcium fluoride(Fluorite)+ H2SO4 =Concentrated
sulfuric acid2HF
Hydrogenfluoride* There are five main grades of fluorite purity,and for semiconductor applications, highquality fluorite with a purity of 97% or higher
is required.

+ CaSO4
Calcium
sulfateConcretematerials, etc.

Reaction and refinement using our proprietary technology

Treatment of
surface such as
stainless steel

Raw materials
such asalternatives for
CFCs

Etching agent for
semiconductor
liquid crystals

Materials forlithium-ion
secondarybatteries

Camera lens materials
for semiconductor
manufacturing
equipment

Reaction catalyst
Other products

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Introduction of Our Business
High-Purity Chemical Business
Surface Treatment

Manufacture and sale of chemicals used for acid cleaning of stainless steel andslimming of LCD panels

Alternatives for CFCs

Manufacture and sale of hydrofluoric anhydride, raw materials for CFCs andfluoropolymers

B a t t e r i e s

Manufacture and sale of additives to improve the performance of lithium-ion
secondary batteries

Semiconductors/LCDs

Manufacture and sale of chemicals for etching in the semiconductor and LCD panel
manufacturing processes

Semiconductor Devices

Manufacture and sale of raw materials for camera and stepper lenses, tantalum
production aids for tantalum capacitors, etc.

C a t a l y s t sManufacture and sale of raw materials for fluoropolymers and catalysts for themanufacture of pharmaceutical intermediates, etc.

GSale as raw material for concrete, etc. (Byproduct of hydrofluoric acid production)

ypsumGeneral Products

Manufacture and sale of fluorine compounds for toothpaste, concentrated boron
compounds, etc.

OSales of purchased goods, etc.

ther5

Introduction of Our Business- Semiconductors/LCDs -Ultra-High Purification Technology

 Impurity levels of less than 1 ppt (1×10-12) are controlled by ultra-purification and ultra-cleaningtechnologies.
 Mass production of ultra-pure chemicals for ultra-high integrated circuit

Ultra High Purity Hydrofluoric Acid
 Hydrofluoric acid (HF) is the only chemical capable of etching out silicon oxide film
 Chemical solutions are indispensable to the semiconductor manufacturing process and require ultra-highpurity
 In particular, dilute hydrofluoric acid is used in a number of semiconductor processes

Ultra High Purity Buffered Hydrofluoric Acid
 Mixed aqueous solution of hydrofluoric acid (HF) and ammonium fluoride (NH4F)
 Mainly used in processes such as etching and cleaning of insulation films
 Chemicals with etch rates ranging from tens of Å/min to thousands of Å/min can be produced

Example of Application (Photolithography Process)(1) Photoresist coating
on silicon wafer(heat drying)(2) ExposureLight(3) Development(4) Etching(Dissolve silicon oxide filmwith hydrofluoric acidchemicals)(5) Photoresist
stripping

PhotoresistSilicon oxide film

Silicon substrate

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Introduction of Our Business- Semiconductors/LCDs -Production capacity of High Purity Hydrofluoric Acid for Semiconductors
Kitakyushu Factory

Kitakyushu City, Fukuoka

30,000 t /year

Sanpo Factory

Sakai City, Osaka

65,000 t /year

STELLA CHEMIFASINGAPORE

Singapore

10,000 t /year

105,000 t /year* As a comprehensive manufacturer of fluorine compounds, we use our own
technology to do everything from manufacturing to filling.
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Introduction of Our Business- Batteries -Additives

 Additive for electrolytic solution to improve the performance oflithium-ion secondary batteries
 High-temperature endurance・High conductivity・
Increased capacity・Low resistance・Flame retardance

Lithium Hexafluorophosphate High-purity electrolytes for lithium-ion secondary batteries

Izumi Factory's manufacturingbuilding (Izumiotsu City, Osaka)* Manufacturing at our affiliate company in China (Maximum production capacity: 1,300 t/year)

Example of materials used in lithium-ion secondary batteries
Additives

Positive andnegative electrodeSeparator

Current
collector

Electrolyte

BinderProtective IC

PTC element

Action on the Development of Materials forthe Next-Generation Battery

Quzhou BDX New ChemicalMaterials Co., Ltd. (China)[Metal-ion secondary batteries]

High-purity electrolytes for sodium-ion secondary batteries(sodium hexafluorophosphate)[All-solid secondary batteries]

Fluoride materials for all solid-state batteries[Fluoride-ion secondary batteries]

Fluoride-ion conductor material8

Introduction of Our Business - Enriched Boron Enriched Boron (Boron-10)
 Natural boron is made up of two isotopes, boron-10(20%) andboron-11(80%)
 Developed technology to enrich boron-10 to over 95%
 Established mass production technology of enriched boron for
the first time in Japan(2000)
 Boron-10 has an extremely high capacity to absorb neutrons

Enrichment plant(Izumiotsu City, Osaka)

Applications of Enriched Boron Compounds
 Neutron-absorbing material of spent nuclear fueltransportation and storage containers Material of control rods of nuclear reactors and rack materialof spent nuclear fuel pools Excess reaction control of pressurized-water reactors by
dissolving into primary cooling water Raw materials for cancer drug for boron neutron capture
therapy (BNCT:Boron Neutron Capture Therapy)

9Introduction of Our Business - GMP-related Tin Fluoride 2017
The GMP inspection by USFDA for tin fluoride, an active ingredient of OTC anticaries drugs, wascompleted, and obtained official approval.
 2018Started marketing of “tin fluoride” as a GMP-compliant product.

<Actions of fluorine on teeth>■ To suppress Streptococcus mutans from producingacid (Cavity prevention)■ To promote tooth remineralization■ To form acid-resistant teeth (to form fluorapatite)* We expect to see big demand mainly inEurope and the US, where there is strong
Izumi Factory's manufacturing building
interest in dental health and beauty.
(Izumiotsu City, Osaka)*

What is FDA?

*

What is GMP?

FDA stands for Food and Drug Administration in the U.S.
(A public agency, similar in function to the Ministry of Health, Labour and Welfare in Japan)
It stands for “Good Manufacturing Practice”, which refers to a common standard for manufacturing and quality control of drugs and quasi-drugs.

10Introduction of Our Business - Other product examples Optical Material-Related(Product information)◆Calcium Fluoride◆Aluminum Fluoride◆Magnesium Fluoride◆Zinc Fluoride◆Lithium Fluoride◆Lead Fluoride◆Strontium Fluoride◆Barium Fluoride

Reactive Catalyst-Related◆High Purity Boron Trifluoride◆Boron Trifluoride n-Butyl Ether◆Boron Trifluoride Piperidine◆Boron Trifluoride Diethyl Ether◆Boron Trifluoride Phenol◆Triethylamine 3HF◆Boron Trifluoride Dimethyl Ether◆Boron Trifluoride Monoethyl Amine

Surface Treatment, Alternatives for CFCs-Related

Nuclear Energy-Related◆Anhydrous Hydrofluoric Acid

◆10B Enriched Potassium Fluoroborate◆ 10B Enriched Boric Acid

◆55% Hydrofluoric Acid

Other Products◆Fluorosilicic Acid
◆Potassium Fluorosilicate ◆Fluoroboric Acid
◆Tin Fluoroborate◆Copper Fluoroborate◆Lead Fluoroborate◆Sodium Fluoroborate◆Potassium Fluoroborate◆Ammonium Hydrogenfluoride ◆Sodium Fluoride◆Potassium Fluoride◆Ammonium Fluoride◆Potassium Hexafluorozirconate◆Potassium Hexafluorotitanate◆Refined Calcium Fluoride◆Potassium Hexafluorophosphate

Newly-Developed Products◆Detergents Suppressing Etching of Silicon Nitride Film
◆Detergents Inhibiting Silicon and Polysilicon Damage◆Various Fluoride Nanoparticles Dispersant (Magnesium, Lithium, Ytterbium, Calcium)◆Various Ionic Liquids◆Special-Purpose Inorganic Fluorine Compounds◆Fluorinated Carbon Nano-Tubes◆Phosphor and its related materials
11Introduction of Our Business* For details, please visit the website.

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Introduction of Our Business - Transportation Business Transportation Business(HP URL)

BLUE EXPRESS, Inc.

T r a n s p o r t

Land transport ・Marine transport・Rail transport

Customs Clearance

Customs clearance ・Loading and Unloading

Warehousing

Providing multi-functional warehouses fully equipped with the latest systems

Supplying large and pressurized containers that meet ISO specifications,
medium-size IBC pressurized containers, as well as IBC containers with UN
Container services
specifications,and also offering services for cleaning, repairing and leasing thecontainers
Customs
clearance sites

Shipping terminals

Overseas Bases

Ohama OfficeSendai Office

Singapore

Osaka Office

Kanto Office

China(Shanghai)

Yokohama Office

Yokohama OfficeShimizu Office
Nagoya Office
Ohama Office
Kobe Office
Kitakyushu Office13

Introduction of Our Business - Medical Business (HP URL)

Medical Business

STELLA PHARMA CORPORATION

Boron Neutron Capture Therapy(Boron Neutron Capture Therapy : BNCT)

Mechanism of BNCTA particle beam treatment that selectively destroys cancer cells by using the nuclear fission reaction
between boron (Boron-10) and thermal neutrons produced by injecting a boron agent into cancer
cells and irradiating the affected area with neutrons from outside the body.

Boron-10 compound (BPA) is
selectively brought into cancer cells.

Efforts to Expand the Indications

Irradiating withthermal neutron ray

Administration of
Boron-10 compound (BPA)

Cancer cells with Boron-10
compound (BPA) are selectivelydestroyed.

Head and neck cancer(recurrent head and neck cancer)

We have obtained marketing and manufacturing approval for
pharmaceutical products.(Boron preparation:Steboronine®)

Brain tumor

A phase II study is underway.

Melanoma/angiosarcoma

A phase I clinical study is underway.

Recurrent high-grade
meningioma

A physician-led phase II study is underway.

(recurrent malignant glioma)(Under the consultation of the Prioritized Review System for innovative
medicines [SAKIGAKE Designation System])(An investigational new drug has been provided)

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