Announcement of the release of a flyer for the CHD1 series solvent and chemical drum pumps, now on sale.

The liquid contact materials have been upgraded to SUS, PTFE, and FFKM, allowing for a wider range of compatible liquids compared to our previous model (CHD-20A)! Suitable for solvent transfer in areas where open flames are prohibited.

**CHD1 Series** CHD1-20ASUS (for solvents) CHD1-20ASUS-V (for solvents / with ball valve) CHD1-20ASUS-N (for solvents / with gun nozzle) ● Oil-free air motor type ● Lightweight and compact body ● Inexpensive **Features** ● Safe and secure due to air drive ● Dedicated for JIS standard 200L closed drums (large cap G2) ● For low viscosity solvents (below 100cP) ● Discharge rate of 20L/min (with nozzle) ● Discharge only **Applications** Used not only in metal plating factories and semiconductor manufacturing but also in chemical plants, pharmaceutical warehouses, and other sites. Additionally, it is used in water treatment, pharmaceuticals, laboratories, schools, and hospitals. For areas with high volatility, high flammability, explosion-proof zones, and no open flames, please use the air-operated model (CHD1-20ASUS-N). **Suitable for use in the following areas!** ■ Lithium batteries (secondary batteries) ■ Dyeing, semiconductor, disinfectant manufacturing, automotive, and electrical appliance factories ■ Surface treatment in metal plating factories ■ New energy sector **Compatible with the following liquids!** ■ Alcohol ■ Thinner ■ Acetone ■ Methanol ■ MEK, etc.

• Other pumps

Pursuing reasonable prices! For the transfer of hydrogen peroxide (30% concentration) and nitric acid (30% concentration).

**CHD Series** CHD-20HP (For Solvents) CHD-20HPV (For Solvents / With Ball Valve) CHD-20HPN (For Solvents / With Gun Nozzle) **Advantages** ● Continuous operation possible ● Lightweight and compact body ● Inexpensive ● Motor part can be replaced **Features** ● Compliant with PSE (Product Safety of Electrical Appliances and Materials) for safety and security ● Dedicated for JIS standard 200L closed drums (large cap G2) ● For low viscosity solvents (below 100cP) ● For dispensing only **Replacing the Motor Head** The head part (motor part) can be easily detached and replaced, allowing for the air motor type to be switched to an electric type. 1. Remove the four screws connecting the motor and the pipe (pump part) with a screwdriver. 2. Reassemble in the same manner to complete the replacement. **Regarding the Ball Valve and Gun Nozzle** ● Ball Valve (V) By installing a ball valve, valve opening and closing operations are possible during liquid dispensing. ● Gun Nozzle (N) Operable with one hand, allowing for opening and closing operations at hand, easy to install with just one screwdriver. *Note: Liquids that corrode stainless steel cannot be used (some SUS parts are present inside the nozzle).*

• Other pumps

Pursuing reasonable prices! For the transfer of hydrogen peroxide (30% concentration) and nitric acid (30% concentration)! Electric chemical drum pump.

**CHD Series** CHD-20PP (for solvents) CHD-20PPV (for solvents / with ball valve) CHD-20PPN (for solvents / with gun nozzle) **Advantages** ● Continuous operation possible ● Lightweight and compact body ● Inexpensive ● Motor part can be replaced **Features** ● Compliant with PSE (Product Safety of Electrical Appliances and Materials) for safety and security ● Dedicated to JIS standard 200L closed drums (large cap G2) ● For low viscosity solvents (below 100cP) ● For discharge only **Replacement of Motor Head** The head part (motor part) can be easily detached and replaced, allowing for the air motor type to be switched to an electric type. 1. Remove the four screws connecting the motor and pipe (pump part) with a screwdriver. 2. Reassemble in the same manner to complete the replacement. **Regarding Ball Valve and Gun Nozzle** ● Ball Valve (V) By installing a ball valve, valve opening and closing operations are possible during liquid discharge. ● Gun Nozzle (N) Operable with one hand, allowing for opening and closing operations at hand, easy to install with just one screwdriver. *Note: Liquids that corrode stainless steel cannot be used (some SUS parts are inside the nozzle).*

• Other pumps

Air-operated portable hand pump for solvents / pump unit and drum can, suitable for use in explosive areas.

ACH Series" ACH-20SUS (for solvents / pump only) ACHD-20SUS (for solvents / for drum cans) ◎ Explosion-proof design that does not use electricity ◎ Can be used without sealing the drum can ◎ Customizable "Benefits" ● Recommended for circulating low-viscosity liquids ● Maximum discharge rate of 50L/min ● Safe due to air-driven operation, with no risk of electric leakage ● Can be used as a circulation pump due to continuous operation capability "Features" ● Maximum lift height of 5m ● Spiral-type centrifugal pump ● Also available in a hose connection type for drum cans "How Centrifugal Pumps Work" A centrifugal pump is suitable for drawing low-viscosity liquids with minimal height difference, utilizing the centrifugal force generated by a rapidly rotating impeller shaped like a spiral inside. It is also referred to as a "spiral pump.

• Other pumps

Air-operated portable hand pump for kerosene and light oil, suitable for use in explosive areas, with both ends for drum cans and hoses.

ACH Series" ACH-20AL (for kerosene and light oil / pump only) ACHD-20AL (for kerosene and light oil / for drums) ACHH-20AL (for kerosene and light oil / hose at both ends) ◎ Explosion-proof specification that does not use electricity ◎ Can be used without sealing the drum ◎ Customizable "Benefits" ● Recommended for circulating low-viscosity liquids ● Maximum discharge rate of 50L/min ● Safe due to air drive, with no risk of electric leakage ● Can be used as a circulation pump due to continuous operation capability "Features" ● Maximum lift height of 5m ● Spiral-type centrifugal pump ● Available in types for drums and hose connections "How Centrifugal Pumps Work" A centrifugal pump is suitable for drawing low-viscosity liquids with minimal height differences, utilizing the centrifugal force generated by a rapidly rotating impeller shaped like a spiral inside. It is also referred to as a "spiral pump.

• Other pumps

The liquid contact materials have been upgraded to SUS, PTFE, and FFKM, allowing for a greater variety of compatible liquids compared to our previous model (CHD-20SUS)! Suitable for solvent transfer in chemical plants.

**CHD1 Series** CHD1-20SUS (for solvents) CHD1-20SUSV (for solvents / with ball valve) CHD1-20SUSN (for solvents / with gun nozzle) ● Continuous operation possible ● Lightweight and compact body ● Inexpensive **Features** ● Compliant with PSE (Product Safety of Electrical Appliances and Materials) for safety and security ● Dedicated to JIS standard 200L closed drums (large plug G2) ● For low viscosity solvents (below 100cP) ● Discharge rate of 22L/min ● For discharge only **Applications** Not only in metal plating factories and semiconductor manufacturing, but also in chemical plants, pharmaceutical warehouses, and more. Additionally used in water treatment, pharmaceuticals, laboratories, schools, and hospitals. For areas with high volatility, high flammability, explosion-proof zones, and no open flame areas, please use the air-operated model (CHD1-20ASUSN). **Suitable for use in the following areas!** ■ Lithium batteries (secondary batteries) ■ Dyeing, semiconductor, disinfectant manufacturing, automotive, and electrical appliance factories ■ Surface treatment in metal plating factories ■ New energy sector **Compatible with the following liquids!** ■ Ethyl acetate ■ Butyl acetate ■ Hydrogen peroxide ■ Sodium hydroxide ■ Nitric acid (30% concentration)

• Other pumps

[For Solvents/Ball Valve with Gun Nozzle] For transferring alkaline solvents in areas where open flames are prohibited! An air-operated chemical drum pump designed with a focus on reasonable pricing.

**CHD Series** CHD-20AHP (For solvents) CHD-20AHPV (For solvents / with ball valve) CHD-20AHPN (For solvents / with gun nozzle) **Advantages** ● Continuous operation possible ● Lightweight and compact body ● Inexpensive ● Safe division of flammable liquids ● Motor part can be replaced **Features** ● Compliant with PSE (Product Safety of Electrical Appliances and Materials) for safety and security ● Designed specifically for JIS standard 200L closed drums (large cap G2) ● For low viscosity solvents (below 100cP) ● Air-operated, eliminating concerns about electric leakage ● Air motor type with high discharge volume, non-pulsating ● Designed exclusively for discharge **Replacement of Motor Head** The head part (motor part) can be easily detached and replaced, allowing the air motor type to be switched to an electric type. 1. Remove the four screws connecting the motor and pipe (pump part) with a screwdriver. 2. Reassemble in the same way to complete the replacement.

• Other pumps

A chemical pump that pursues reasonable pricing. For the transfer of dilute sulfuric acid and alkaline solvents in fire-restricted areas.

Chemical Pump 《CHD Series》 CHD-20APP (for solvents) CHD-20APPV (for solvents / with ball valve) CHD-20APPN (for solvents / with gun nozzle) CHD-20AHP (for solvents) CHD-20AHPV (for solvents / with ball valve) CHD-20AHPN (for solvents / with gun nozzle) 《Benefits》 ● Continuous operation possible ● Lightweight and compact body ● Inexpensive ● Safe division of flammable liquids ● Motor part can be replaced 《Features》 ● Dedicated to JIS standard 200L closed drums (large cap G2) ● For low viscosity solvents (below 100cP) ● No risk of electric leakage due to air operation ● Air motor type with high discharge volume, non-pulsating ● Discharge only PSE (Electrical Appliance and Material Safety Law) compliant product PSE (Product Safety Law) compliant product, ensuring safety and security

• Other pumps

A pump that uses compressed air to transfer liquids by utilizing internal pressure! It minimizes residual liquid, is energy-efficient, and is suitable for safely dispensing highly flammable liquids.

◎Explosion-proof design that does not use electricity ◎Double safety structure for peace of mind ◎Can be stored in a sealed manner ◎Compatible with high-viscosity liquids ◎Low failure rate ◎Efficient liquid discharge without waste ◎Discharge method can also be selected 《Advantages》 ●Minimal residual liquid (about 200cc), can discharge without waste ●Safe transfer of volatile and flammable liquids ●Quiet operation with a 1 horsepower compressor ●Low air consumption and energy-saving ●Acceptable for small amounts of foreign matter contamination ●Continuous operation possible 《Features》 ●Designed specifically for JIS standard 200L closed drums (large cap G2) ●Sealed pressurized drum for discharge only, not for recovery ●Double pressure reduction with regulator and safety valve for added safety ●Equipped with an anti-static grounding wire (only for G, AS, SUS types) 《Mechanism of Air Pressure Pump》 This pump inserts depressurized compressed air into the drum, changing the internal pressure of the drum to discharge and draw in liquid. Since there are no obstacles in the flow path, it can handle liquids with foreign matter contamination and viscosity (up to 3,000 cP) without failure. Additionally, being air-operated, it can be used with liquids and environments that pose a risk of ignition or explosion. *Flow meter and gun nozzle included; foreign matter contamination not allowed.

• Other pumps

A pump that uses compressed air to transfer liquids by utilizing internal pressure! It minimizes residual liquid, is energy-efficient, and is suitable for safely dispensing highly flammable liquids in small quantities.

◎Explosion-proof design that does not use electricity ◎Double safety structure for peace of mind ◎Can be stored in a sealed manner ◎Compatible with high-viscosity liquids ◎Low failure rate ◎Efficient liquid discharge ◎Discharge method can also be selected 《Benefits》 ●Minimal residual liquid (approximately 200cc), capable of efficient discharge ●Safe transfer of volatile and flammable liquids ●Quiet operation with a 1 horsepower compressor ●Low air consumption and energy-saving ●Acceptable for small amounts of foreign matter contamination ●Continuous operation possible 《Features》 ●Dedicated to JIS standard 200L closed drums (large cap G2) ●Designed for discharge only with sealed pressurized drums, not for recovery ●Double pressure reduction with a regulator and safety valve for added safety ●Equipped with an anti-static grounding wire (only for G, AS, SUS types) 《Mechanism of the Air Pressure Pump》 This pump inserts depressurized compressed air into the drum, changing the internal pressure of the drum to discharge and draw in liquid. Since there are no obstacles in the flow path, it can handle liquids with foreign matter contamination and viscosity (up to 3,000 cP) without failure. Additionally, being air-operated, it can be used with liquids and environments that pose a risk of ignition or explosion. *Flow meter and gun nozzle included; foreign matter contamination not allowed.

• Other pumps

A pump that uses internal pressure with compressed air for transferring liquids, equipped with a solvent nozzle! Minimizes residual liquid, energy-efficient, and suitable for safely dispensing highly flammable liquids.

◎ Explosion-proof design that does not use electricity ◎ Double safety structure for peace of mind ◎ Can be stored in a sealed manner ◎ Compatible with high-viscosity liquids ◎ Low failure rate ◎ Efficient liquid discharge without waste ◎ Discharge method can also be selected 《Advantages》 ● Minimal residual liquid (approximately 200cc), can discharge without waste ● Safe transfer of volatile and flammable liquids ● Quiet operation with a 1 horsepower compressor ● Low air consumption and energy-saving ● Acceptable for small amounts of foreign matter contamination ● Continuous operation possible 《Features》 ● Dedicated to JIS standard 200L closed drums (large cap G2) ● Sealed pressurized drum for discharge only, not for recovery ● Double pressure reduction with regulator and safety valve for safety ● Equipped with an anti-static grounding wire (only for G, AS, SUS types) 《Air Pressure Pump Mechanism》 This pump inserts depressurized compressed air into the drum, changing the internal pressure of the drum to discharge and draw in liquid. Since there are no obstacles in the flow path, it can handle liquids with foreign matter contamination and viscosity (up to 3,000 cP) without failure. Additionally, because it is air-operated, it can be used with liquids and environments that pose a risk of ignition or explosion. *Flow meter and gun nozzle included; foreign matter contamination is not acceptable.

• Other pumps

Radial piston type air-operated handy pump that can be used in explosion-proof areas and is easy to carry! For transferring liquids from tanks or drums such as kerosene and diesel.

"AMVH Series" AMH1D-20FC (For oil, kerosene, and light diesel / For drums) ◎ Explosion-proof design that does not use electricity ◎ Can be used without sealing the drum ◎ Customizable "Benefits" ● Capable of transferring medium viscosity liquids (up to 2,000 cP) ● Safe due to air-driven operation with no risk of electric leakage ● Can be used as a circulation pump due to continuous operation capability "Features" ● Maximum lift height of 15m ● Radial piston motor type vane pump ● Available in a hose connection type for drums "Mechanism of the Radial Piston Motor" A motor that operates by alternately compressing air into three pistons. With three pistons built-in, it is characterized by high discharge pressure. It can transfer high viscosity liquids (up to 2,000 cP) to heights and distances within 15m.

• Other pumps

Hand-cranked pump that performs exceptionally well even in emergencies! Lightweight with a resin body, ideal for dispensing organic solvents.

**HRP Series** HRP-25Z (for solvents) HRP-25ZM (for solvents / with hose and sealed adapter) ◎ Hand-cranked pump that does not require a power source ◎ Widely usable from household drums to factories ◎ Lightweight body made of resin ◎ Suction pipe can be cut **Benefits** ● Simple operation by just turning the handle ● Lightweight and easy to replace ● No power source required ● Can also dispense highly flammable organic solvents in small quantities ● Suitable for low-viscosity liquids (below 500 cP) with specific gravity (below 1.1) ● Safe for highly volatile liquids with a sealed adapter (HRP-25ZM) ● Very useful in emergencies and disasters ● Can handle weak acids and weak alkali chemicals with resin material (HRP-25Z series) **Features** ● Designed specifically for JIS standard 200L closed drums (large cap G2) ● Continuous pumping is possible ● Securely fixed to the drum with an adapter ● Comes with a 40 mesh strainer to prevent foreign matter contamination ● Specifications can be selected according to the liquid *Note on stainless steel hose: Flexible hoses have a limited range of motion; bending them excessively may cause tearing.*

• Other pumps

Hand-cranked pump that performs exceptionally well even in emergencies! Lightweight body made of resin, suitable for dispensing organic solvents.

**HRP Series** HRP-25III (For solvents) HRP-25IIIH (For solvents / with hose) HRP-25IIIHM (For solvents / with hose, sealed adapter, and ground wire) ◎ Hand-cranked pump that requires no power source ◎ Widely usable from household drums to factories ◎ Lightweight body made of resin ◎ Suction pipe can be cut **Advantages** ● Simple operation by just turning the handle ● Lightweight and easy to replace ● No power supply needed ● Can also dispense highly flammable organic solvents ● Suitable for low-viscosity liquids (below 500 cP) with specific gravity (below 1.1) ● Safe for highly volatile liquids with sealed adapter (HRP-25III HM) ● Great for emergencies and disasters **Features** ● Dedicated for JIS standard 200L closed drums (large cap G2) ● Continuous pumping is possible ● Securely fixed to the drum with an adapter ● Comes with a 40 mesh strainer to prevent foreign matter contamination ● Specifications can be selected according to the liquid *Note on stainless steel hose: Flexible hoses have a limited range of motion, and forcing them to bend may cause them to tear.*

• Other pumps

Hand-cranked pump that performs exceptionally well even in emergencies! Made of all stainless steel, perfect for dispensing organic solvents.

**HRD Series** HRD-25SUS (for solvents) HRD-25SUSH (for solvents / with hose) HRD-25SUSHM (for solvents / with hose, sealed adapter, and grounding wire) ◎ Hand-cranked pump that does not require a power source ◎ Can be widely used from household drums to factories ◎ Continuous pumping is possible ◎ Suction pipe can be cut **Benefits** ● Easy operation by simply turning the handle ● No power supply required ● Can dispense highly flammable organic solvents in small quantities ● Suitable for low-viscosity liquids (below 500 cP) with specific gravity (below 1.5) ● Safe for highly volatile liquids with sealed adapter (HRD-25SUSHM) ● Very useful in emergencies and disasters **Features** ● Dedicated to JIS standard 200L closed drums (large cap G2) ● Continuous pumping is possible ● Securely fixed to the drum with an adapter ● Equipped with a 40 mesh strainer to prevent foreign matter contamination ● Specifications can be selected according to the liquid *Note on stainless steel hose: Flexible hoses have a limited range of motion, and forcing them to bend may cause tearing.*

• Other pumps

Just by moving the handle up and down, you can transfer high-viscosity liquids.

"Straight Series" S-LX (for solvents) S-LXHS (for solvents / with hose) ◎ Hand piston pump that requires no power source ◎ Compatible with high-viscosity liquids ◎ Continuous pumping possible with siphon function "Benefits" ● No power supply needed ● Suitable for high-viscosity liquids (up to 10,000 cP) with a specific gravity of 1.5 or less ● Can dispense oils that become hard in winter (S-L series) ● Very useful in emergencies and disasters "Features" ● Dedicated for JIS standard 200L closed drums (large cap G2) ● Continuous pumping capability ● Discharges when the piston is pulled up using an up-and-down piston mechanism * Please pull the handle slowly for high-viscosity liquids ● Siphon works for low-viscosity liquids ● Discharge volume per stroke is 600 cc "Mechanism of the piston pump" It is a mechanism that discharges simply by attaching it to a drum and moving the upper piston up and down. It discharges when the upper piston is pulled up. The discharge volume per stroke is 600 cc. This pump is suitable for extracting small amounts of liquid from a drum. Its simple structure is characterized by low failure rates.

• Other pumps

This is a flat-type 5-port industrial switching hub. It can be used in locations where quiet operation is required due to its fanless design. It achieves an operating temperature range of -40 to +70°C and is equipped with features such as dual power supply and reverse polarity protection. ● Compact, flat-type design Its compact shape (50(W)x110(D)x24.5(H)mm) allows for easy wiring even in space-constrained panel installations. ● Equipped with 5 ports supporting 1000BASE-T It includes 5 ports compliant with the maximum IEEE 802.3ab (1000BASE-T) standard. ● Wide-range power input and dual power supply support It supports power supply from a DC source of 8 to 54VDC. It features dual power supply support with two power lines, ensuring continued operation even if one power source encounters a problem. It is designed for safety, allowing normal operation even if the power is wired in reverse, and is equipped with an FG terminal on the power connector. ● Wide temperature range (-40 to 70°C) It excels in environmental resistance and durability, making it safe for use in harsh industrial environments. ● Can be installed on DIN rails or walls.

This is a flat-type 8-port industrial switching hub. It can be used in locations where quiet operation is required due to its fanless design. It achieves an operating temperature range of -40 to +70°C and is equipped with features such as dual power supply and reverse polarity protection. ● Compact, flat-type design With a compact shape (68(W)x110(D)x24.5(H)mm), it allows for easy wiring even in space-constrained panel installations. ● Equipped with 8 ports supporting 1000BASE-T It features 8 ports compliant with the maximum IEEE 802.3ab (1000BASE-T) standard. ● Wide range power input and dual power supply support It supports power supply from 8 to 54VDC. It is designed for dual power supply from two sources, ensuring continued operation even if one power source encounters a problem. It has a safety design that allows normal operation even if the power is wired in reverse, and it is equipped with an FG terminal on the power connector. ● Wide temperature range (-40 to 70°C) support It excels in environmental resistance and durability, making it safe to use even in harsh industrial environments. ● Can be mounted on DIN rails or walls.

Riyadh, December 28, 2025 - (JCN Newswire) - One of the main events of Riyadh Season 2025, "The Ring V: Night of the Samurai," was held on the 27th at the Mohammed Abdu Arena in Boulevard City. In the main event of the tournament, Japan's champion Naoya Inoue defended his super bantamweight world title against Mexican challenger Alan Picasso, winning by a unanimous decision of 3-0 and securing victory in a world-class match. The event opened with the performance of the Saudi Arabian national anthem, signaling the start of a night filled with high-level competition. The main event began cautiously, with both fighters gauging distance and timing in the first round. In the second round, Inoue took control with a series of powerful punches, and in the third round, he continued to gain an advantage with clean left hits. The fourth round saw both fighters heightening their caution, leading to a closely contested exchange of attacks. For the full text, please refer to the following link: https://acnnewswire.com/press-release/japanese/104385/

As the new year begins, I would like to extend my heartfelt congratulations on your continued prosperity. I sincerely appreciate your exceptional support throughout the year. This is the STJ Group (Santelecom Japan, STJ Rentec). Now, I am pleased to announce that we will be opening our "Transceiver & Smartphone Rental Shop" simultaneously at three locations nationwide on January 26 (Monday)! ■ List of Services to be Offered - Same-day pickup/return of rental equipment - Usage explanations and demonstrations of rental equipment - Wireless solutions consultation desk - Mobile BPO service counter As a special promotion to celebrate the opening of the rental shop, we are currently running a special price campaign for picking up rental equipment at the shop! For more details, please contact us!

【Notice of Year-End and New Year Holidays】 Thank you very much for your continued support. Our company will be closed for the year-end and New Year holidays as follows: Holiday Period: Saturday, December 27, 2025 – Sunday, January 4, 2026 Please note that inquiries and orders received during the holiday period will be addressed sequentially starting from Monday, January 5, 2026. We apologize for any inconvenience this may cause and appreciate your understanding.