Silicon Powders

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[INQ. NO. 2408M27] Since its establishment in 2008, Korea Metal Silicon Co., Ltd. (KMS) has specialized in “silicon,” a core material in various industrial fields.
From 2017 to 2018, KMS partnered with Research Institute of Industrial Science & Technology (RIST), the research institute utilized by POSCO group, and LG Chem, the predecessor of LG Energy Solution, to produce composite anode material with graphite and silicon through utilizing its own nano-silicon technology.
Furthermore, KMS has developed “Pure SiliconTM” in collaboration with LG Energy Solution. Pure SiliconTM is the stand-alone active material for LIB (lithium-ion battery) anode materials.
Pure SiliconTM has a micrometer particle size and a special particle size distribution, so Pure SiliconTM is used as the sole active material without carbonaceous active materials such as graphite. Pure SiliconTM is a registered trademark of KMS.

Metal silicon powder
Metal silicon is a material manufactured by reducing silica, and is used as the main raw material for polysilicon, a core material for alloys, semiconductors, and solar energy. It is widely used in secondary battery anode materials, special industrial gases, and organic silicone manufacturing.

Silicon powder for lithium-ion battery
Currently, silicon is used as an anode active material in lithium-ion batteries. Silicon has a larger capacity and faster charge/discharge speed than the existing material graphite. Silicon is applied to the anode in various forms such as SiOx, Si/C, Pure SiliconTM and silicon nanowire.
KMS possesses technologies and patents that can produce high-quality silicon powder at high yields, so KMS produces and supplies silicon powder of purity and particle size that meets customer requests. KMS is the only domestic company that produces metal silicon powder from non-Chinese raw materials.

  
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Hydrogen-Storage Alloys

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[INQ. NO. 2408M26] Stable storage and supply of hydrogen are of paramount importance to ensure mobility based on hydrogen fuel cells and the efficient operation of generators. Existing hydrogen-storage methods include a high-pressure hydrogen-storage system and a liquid hydrogen-storage system, both of which have their own advantages and disadvantages.
Unlike the existing methods, Hydrolux has developed HL-2.0, a low-pressure and high-capacity hydrogen storage alloy that can increase safety while reducing storage space.
Among the hydrogen bell chains, the existing hydrogen storage method includes a high-pressure hydrogen-storage method, and a liquid hydrogen-storage method, to store a large amount per unit volume. However, it has disadvantages in that it has to use a compressor, risk, and insulation system.
Unlike the existing methods, Hydroluxis HL-2.0, a low-pressure and high-capacity hydrogen storage alloy has high safety because it can store and release hydrogen at less than 10 bars while reducing storage space.

Hydrogen-storage alloys that can be safely stored in high capacity of green hydrogen
The HL-2.0 developed by Hydrolux is a TiMn2-based hydrogen-storage alloy that has a larger hydrogen-storage capacity within a pressure range of less than 10 bars compared to other hydrogen-storage alloys. This does not violate the high-pressure method applied by high-pressure containers, and green hydrogen produced by water electrolysis from new and renewable energy sources can be stored directly without a compressor.
HL-2.0 has already won the Innovation Award in the field of substability and eco-design & smart energy at the 2024 CES, and its excellence has been certified. In addition, it received the Excellence Award in Hydrogen Storage at H2MEET 2024 as a fuel cell supply system for emergency power generation. Through this, many companies in the United States, China, and Japan requested and sold the supply system.

Founded in June 2021, Hydrolux attracted its first investment in the POSCO Idea Marketplace three months after its establishment, and completed series bridge funding worth KRW8.7 billion by December 2023. As a result, many related industries have a good perception of Hydrolux’ vision, and Japanese companies have shown a lot of interest in it.

The CEO of Hydrolux explained, “We plan to provide a variety of hydrogen storage systems depending on the use and mobility of hydrogen storage alloys by designing, characterizing, and manufacturing hydrogen storage alloys that are optimal for hydrogen storage capacity, operating temperature, and flat pressure.” He added, “These are some of the various requirements of consumers, so we will eventually create a business model that encompasses all the processes of hydrogen distribution, from production to supply.”


  
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Rotating Parts of Turbines &Turbomachinery

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[INQ. NO. 2408M25] FLOWDY is a company specializing in the production of steam turbines, gas turbines, and turbomachinery parts. In terms of materials, it purchases and processes special alloy materials that have undergone centrifugal casting, forging, and heat treatment in the production process.
FLOWDY has been exporting its products to advanced companies related to its products in Taiwan, Panama, etc., starting with Mitsubishi in Japan in December 2018. It is currently expanding globally to Egypt, Switzerland, Nigeria, Malaysia, and Indonesia.
FLOWDY has a technique to restore damaged parts to the same level as original products with only the actual product without drawings or samples, and as a result of focusing on reverse design using 3D scanning and high-dimensional design techniques, it is receiving orders for reverse design from many countries, which is contributing to localization by reducing overseas dependence on rotating equipment.

Diaphragm
Diaphragm is a modular component in which a fixed wing attached to a rotor is assembled on a ring, which adjusts the direction and speed of steam, to be effectively transmitted to the rotating wing.

Packing ring
Packing ring is a sealing device inside a turbine, installed between the stationary and rotating bodies of a turbine with high temperature and pressure to prevent steam from leaking.

Compressor blade
Compressor blade is a rotary blade installed around the circumference of a compressor disk of a gas turbine engine, which provides energy to the air when the air passes through the engine.

Impeller
Impeller is also called a runner. This is a wheel that rotates by receiving energy from steam or water with a number of blades around it in a steam turbine or reaction water turbine.
Installed in a turbocharger, 12 to 20 blades are radially installed according to a complex three-dimensional curve, and the compressor side is mainly made of aluminum, while the turbine side is made of a heat-resistant alloy. However, new materials such as ceramics are also used.

 
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Five-axis Machining Products

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[INQ. NO. 2408M24] TCT Co., Ltd. (Turbo Cam Technology) is a top-level, five-axis machining company in South Korea that manufactures aircraft engine components, turbo-machinery core components, and defense products.
The materials handled include aluminum alloy; and difficult-to-cut materials such as stainless steel, titanium alloy, and Inconel, and sizes up to 2m in diameter can be processed.
TCT supplies its top-class products to global companies at home and abroad, including government research institutes, the military, Hanwha Aerospace, Hyundai Heavy Industries, LG Electronics, KAI; IHI, Mitsubishi, Hitachi, and Panasonic in Japan; Lone Star and Daikin in the United States; and Kirloskar in India.
TCT has acquired a high level of technology and quality-assurance capabilities required by the aviation/defense industry, including the HERMLE 5-axis equipment fleet, MAX-5 S/W, and AS9100D certification.

Turbo-machinery core components
TCT produces rotating core parts such as impellers, diffusers, blisks, and inducers, of turbo equipment such as turbo compressors, turbo blowers, and turbo chillers.

Aerospace and defense products
TCT produces aircraft engine components, space-launch vehicle-propulsion components, and defense-propulsion components. Aircraft engine parts are supplied to the world’s top-three engine manufacturers: Pratt & Whitney, GEA, and Rolls-Royce.
Space-launch vehicle components such as turbo pump components are supplied to government agencies such as the Korea Aerospace Research Institute and major space development companies.

Defense products, such as guided weapon propulsion components, are supplied to government research institutes and major defense system companies.
TCT also manufactures automobile air conditioning valves, and 5KW hydrogen fuel cells for buildings. It supplies automobile air conditioning valves such as ECV to SMP in the United States. Hydrogen fuel cells are supplied as OEM to S-Fuel Cell in Korea.

 
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Essential Materials for Exploration of Mineral Resources

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[INQ. NO. 2408M23] Tae Sung Co. was founded in 1980, and is currently a leading company in Korea in diamond core bits. It is the only company in Korea that can provide total solutions for impregnated core bits, reamers, drill rods, core barrels, and drilling accessories.
Tae Sung has approximately 600 domestic customers and is currently exporting it top-quality products to more than 27 countries.

Impregnated diamond core bits
Impregnated diamond core bits are attached to the foremost part of the core barrels to be used in direct drilling of the ground, and play the most important role among the equipment that are used in drilling. There are many types of bits classified and used according to the purpose of drilling or ground conditions, and the bits also differ in terms of their material, shape, and performance.
It is thus economical and highly effective in drilling works to use the proper bits after full understanding of the characteristics of each bit. Impregnated diamond core bits are used for the drilling of hard rocks, and metal bits are normally used for the ground or soft rocks.

Impregnated diamond core bits are normally used in cases where core drilling is needed, while non-core bits are used where core is not needed. However, the drilling efficiency and economic feasibility increase if core bits are used while core is not needed.
Due to the global trend of moving toward a carbon-free era, the demand for mineral resources such as electric vehicles and batteries is expected to steadily increase in the future. Accordingly, the demand for diamond coring products produced by Tae Sung will also automatically increase, so the outlook is bright.

Diamond reaming shell (reamer)
A diamond reaming shell is connected with a bit to be used, and the drilling by bit and grinding of side surfaces can be done simultaneously, but the drilled hole should be kept not smaller than the diameter of the bit (reaming).

It should be used to prevent early wear and tear of the outer diameter of the bit, and also to prevent vibration and deformation of the hole walls. Diamond reaming shells are produced with the outside diameter larger than that of the bit.
There are two types of diamond reaming shells — one is for general rocks, and the other is the screw-type for strong rocks.
Taesung’s diamond reaming shells have an excellent lifespan and reaming ability as high-quality shank and natural diamond are used in producing them.

 
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Chargers for EVs

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[INQ. NO. 2408M22] COSTEL Co., Ltd. is a leading electric vehicle (EV) charger manufacturer in Korea, boasting a rich history of about 38 years since its establishment in 1986.
COSTEL has grown into a comprehensive technology company that manufactures and produces not only built-in home appliances but also EV chargers.
COSTEL started its EV charger manufacturing business in 2016, successfully launching slow chargers in 2018 and fast chargers in 2019. Since 2022, COSTEL has begun full-scale supplying of EV chargers to the overseas market, expanding its presence in the global market.
COSTEL strengthens its technological capabilities by having its own research lab where it directly develops and produces HMI boards and control boards for EV chargers. Additionally, COSTEL operates EV charger and built-in home appliance manufacturing plants to maximize the efficiency of the manufacturing process, and enhance customer satisfaction through prompt after-sales service.
Currently, COSTEL offers a diverse product lineup, including slow chargers (3.5~11kW), fast chargers (50~200kW), high-capacity chargers (240~360kW) by many CPOs (Charging Point Operators). COSTEL will continue to lead the market with innovative technology development and high-quality products.

CEC-1020
CEC-1020 represents COSTEL’s unique design identity. By adopting a 27-inch large LCD screen, user visibility was expanded and user convenience was improved. Advertisement video playback is possible. CEC-1020 is a 100kW high-capacity fast charger.
CEC-1020 supports both single charging and simultaneous charging. User authentication is possible through RFID. Enhanced paint quality and durability are secured even in an external installation environment. The screen-usage configuration is designed with a focus on user convenience.

CEC-2020
CEC-2020 has COSTEL’s unique design identity. By adopting a 27-inch large LCD screen, user visibility was expanded and user convenience was improved. Advertisement video playback is possible. CEC-2020 is a 200kW high-capacity fast charger.
CEC-2020 supports both single charging and simultaneous charging. User authentication is possible through RFID. Enhanced paint quality and durability are secured even in an external installation environment. The screen usage configuration of CEC-2020 is designed with a focus on user convenience. Moreover, CEC-2020 can charge electric buses.

 
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High-Speed Motor Elements (Stator & Rotor)

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[INQ. NO. 2408M21] GEM Co., Ltd. is a company specialized in manufacturing motor elements (stator and rotor) for high-speed rotational machines. In 2009, GEM was established with an objective of localizing high-speed motors for which Korea had depended on importation for their parts.
Therefore, the R&D team of GEM has focused on researching and developing high-speed motors in the electric and mechanical fields. Based on its experience, GEM has been able to provide various products to meet the demands of clients with its capacity focused on high speed, high efficiency and high power density.

GEM designs and produces high-speed motor elements, stators and rotors, which are essential parts of high-speed motor manufacturing technologies, with its own technologies. GEM manufactures various products with capacity from 1kW to 300kW and rotation speed from 10,000 to 100,000 rpm. These products are used for high-frequency spindles for machine tools, turbo blowers and high-speed pressure pumps in the fields of high-speed rotation and electric power motors for electric vehicles.
As it adopts an overall support system under which a series of processes from design to application of final products can be carried out, GEM is fully capable of swift and accurate responses to the customers’ demands.
GEM is now the only company in Korea to manufacture high-speed motors. It has also been able to produce motors for high-frequency spindles and to localize spindle products successfully.
From development to application of final products, GEM responds quickly to demands of clients even with consulting.
Currently, it produces various products ranging from ultra-small products to high-efficiency large products for electric cars. Since 2010, GEM has been putting its best efforts into localizing spindle products by manufacturing motors for high-frequency spindles.

 
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Syringe-Manufacturing Machines

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 [INQ. NO. 2408M20] The syringe-manufacturing machines of JEESUNG Engineering include a chain of machines that print the markings onto, assemble, package, and sterilize the syringes that we usually see at the clinics.
The machines manufacture general (conventional) syringes of different sizes, including 3ml, 5ml, 10ml, 20ml, etc.

The machines also manufacture some special syringes, such as the 1ml uni-body insulin syringe for diabetic patients, as well as auto-disable syringes, and safety syringes.
These syringes have different purposes. The auto-disable syringes are designed to be automatically disabled when someone intends to use them the second time (by breaking the piston when pulled, etc.) to prevent infection by blocking any attempt to use it more than once.
The safety syringes are designed to protect the medical staff from accidental infection. They are specially manufactured so that the needles will retract into the syringe after use and will not puncture the skin of the medical staffs.
In general, syringes of different sizes are manufactured by: the parts (barrel, plunger and gasket) of different sizes being manufactured by injection; the marks being printed onto the barrel; and the parts being assembled.

The process of syringe-manufacturing
When the machines assemble the parts into the completed products, they are blister-packaged, placed into cartons, and (as the final process) sterilized by the EO sterilizer so that they can be used on human patients at the clinics.
All these processes are carried out by a chain of machines (mold, injector, printer, assembler, and packager), called syringe-manufacturing machines.


 
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Safety Valves

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[INQ. NO. 2408M19] Il-O-Sam Co., Ltd. is a company that has been specializing in the production of valve fittings through forging and processing brass materials since its establishment in 1985.
Il-O-Sam developed the cut-off overflow valve to prevent secondary accidents in the event of a large shock such as an earthquake or fire. This product can significantly reduce accidents with gas cylinders by preventing accidents through the valve’s own function in situations where people cannot do anything.

Cut-off overflow valve
The company’s cut-off overflow valve built into the safety valve can be used for LPG/propane gas for household and restaurant use. The conventional safety valves cannot automatically cut off the flow of gas when an earthquake, fire, severe shock, or accident occurs, affecting the tank, hose, or combustion unit.

The Overfill Prevention Device (OPD) valve developed in the United States has the limitation that it can only be operated when the pressure regulator is removed. However, Il-O-Sam’s cut-off overflow valve is designed to operate automatically in the event of a gas pipe rupture (above the allowable level).
The cut-off overflow valve disconnects the pressure regulator and automatically cuts off the gas when the valve is opened. This product also has such additional functions as automatic gas shutoff if the pressure regulator is accidentally separated or detached from the hose during use; automatic gas shutoff if the gas supply line (hose or pipe) is cut or ruptured; automatic gas shutoff if the LPG cylinder falls over due to an earthquake or impact; automatic gas shutoff if the valve itself is defective or damaged by external impact; and automatic gas shutoff if the pressure regulator is damaged during use.
The cut-off overflow valve is installed inside the valve (embedded type) and costs only about 10% of the price of the existing valves. Therefore, by simply adopting the company’s overcurrent blocking component to the existing OPD valves, users’ products ultimately can be upgraded to the best safety valve.

 
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Automotive Cores

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[INQ. NO. 2408M18] YUSEUNG Co., Ltd. was established in 2011, and has since been developing EGR cooler parts and powder metallurgy parts for internal combustion engines. YUSEUNG is a company that develops magnetic inductor cores and materials for power-conversion devices.
YUSEUNG recently began developing inductor cores for the On Board Chargers (OBCs) of electric hydrogen vehicles and hybrid vehicles, and confirmed delivery to Hyundai Motor Company in 2026.
YUSEUNG has a mission to ‘lead the way to energy-efficiency improvement through innovative technology and product development to reduce energy loss that inevitably occurs during power conversion.’
“We plan to expand our business to inductor core products in the future, leading the way in accelerating the transition to sustainable energy,” remarked the company’s CEO.

Inductor Core
An inductor is one of the three passive components that make up an electric circuit. It is made up of a core made by molding a soft magnetic powder material, and winding a conductive coil (wire) around it.
An inductor temporarily stores energy in the form of a magnetic field in the coil and acts to block changes in the current passing through it, and its size is determined by inductance, which is the ratio of electromotive force to current change (unit: henry, H).

Inductors are essential passive components that make up power circuits, and they play a role in smoothing the current and controlling noise in power circuits. They are also essential components used in power-conversion systems of power-driven devices such as electric vehicles.

Powder magnetic cores
Powder magnetic cores are manufactured by compressing insulating-coated metallic magnetic powder that has uniform voids distributed between the powder particles.
This unique design results in minimal magnetic flux leakage and high insulation proper-ties between the powder particles, thereby making them suitable for low-loss applications even in high-frequency environments.

  
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