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TEL 052-231-0114 FAX 052-238-2140
TEL 02-2189-9988 FAX 02-2189-9900
W 9
200063, China
TEL (8621)5238-7050
TEL 1-949-251-7601
Sukhumvit Road, Klongton, Klontoey, Bangkok,
10110, Thailand
TEL 66(0)2-655-8339

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Room 3206, FI. 32, Changcheng Bldg., North Zhongshan Rd. Putuo Dist., Shanghai, 200063, China
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622 Emporium Tower, 10th 1/8 Room 110, Sukhumvit Road, Klongton, Klontoey, Bangkok, 10110, Thailand

GLOBAL NETWORK
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GLOBAL NO.1 SMELTER
SMELTING REFINING 99.5%
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99.5%
(Anode) 99.99%
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SMELTING PROCESS
TECHNOLOGY
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REFINING PROCESS

CHEMICAL PRECIOUS & RARE METALS
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TECHNOLOGY
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SO3 Gas
H2O H2SO4(
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Ag Powder
Silver paste

120t Ag Paste



Challenge to become the best, made with a global network
Onsan Headquarters (Plant, R&D Center)
148, Sanam-ro Onsan-eup, Ulju-gun,
Yongsan-gu, Seoul, Korea
9F, Woolim W City, 9-22, Pangyo-ro 255beon-gil,
Bundang-gu, Seongnam-si, Gyeonggi-do, Korea
TEL 031-628-7925 FAX 031-628-7999
TEL (8621)5238-7050
TEL 1-949-251-7601
Sukhumvit Road, Klongton, Klontoey, Bangkok,
10110, Thailand
TEL 66(0)2-655-8339
Hangan-daero, Yongsan-gu,
Seoul, Korea
TEL 02-2176-1083
Shanghai
Room 3206, FI. 32, Changcheng Bldg., North Zhongshan Rd. Putuo Dist., Shanghai, 200063, China
Bangkok
622 Emporium Tower, 10th 1/8 Room 110, Sukhumvit Road, Klongton, Klontoey, Bangkok, 10110, Thailand
Thailand
Los Militares 5890, Oficina 1402, Las Condes, Chile
GLOBAL NETWORK LS-Nikko Copper imports copper ore and raw materials from the world’s
resources such as Chile, Indonesia, Peru, Brazil, and Argentina and supplies
refined copper products inside and outside the country. Also, LS-Nikko Copper
operates offices around the world to secure competitiveness for resources
and a stable supply of raw materials, coping with a fierce global business
environment.
GLOBAL NO.1 SMELTER
SMELTING REFINING The anodes of 99.5% purity produced in the smelting plant through the Flash Smelting
Process and Mitsubishi Continuous Smelting Process are transferred to the refining
plant and then turned into electrolytic copper cathode of 99.99% or higher purity through
electrolysis. LS-Nikko Copper’s electrolytic copper cathode products received the
highest grade, Grade A, on the Shanghai Futures Exchange (SHFE) and London Metal
Exchange (LME), proving its excellence in quality internationally.
SMELTING PROCESS
Smelting is the process of producing the anodes of 99.5% or higher purity by taking the
ore taken from the copper mine through various processes. Manufacturing various
chemical products using the sulfurous acid gas produced in this process and producing
slimes of precious metals and rare metals needed in various industries, such as IT, are
also a part of the smelting operation.
TECHNOLOGY LS-Nikko Copper’s Onsan Plant uses two methods; Flash Smelting Process and the Mitsubishi
Continuous Smelting Process, and has the world’s top level operating technology. Onsan Plant is the
world’s first plant that enabled the use of two techniques; the Flash Smelting Process and Mitsubishi
Continuous Smelting Process, in a single plant, and these methods were selected as one of the ‘100
Technologies that Led the Economic Growth of Korea for 60 Years in Modern History’ by the National
Academy of Engineering of Korea in 2010, being recognized for the accomplishment of becoming the
world’s second largest electrolytic copper cathode products maker by achieving optimum productivity
through the use of the advantages of the two methods in a single plant for the first time in the world.
TECHNOLOGY Onsan Plant changed the production facilities of the First Refining Plant in 2005 from a conventional
electrolysis process to a KIDD process with greater advantages in terms of technology and
productivity. Also, the plant introduced the Robotic Type CSM (Cathode Stripping Machine) technology
for the first time in the world and received the attention of the entire copper smelting industry.
Flash Smelting Process
sulfur contained in the copper ore.
50% of the world’s copper smelters
use this method.
this method and has operated it since
1998. It differs from existing smelting
methods, as it can continuously
manufacture anodes by processing
productivity, energy efficiency, and
constituting the process is connected
to the covered runner, through which
the molten copper moves to reduce
smelting gas and fine dust scattering
during the process, which is also
beneficial for the environment.
CHEMICAL PRECIOUS & RARE METALS
smelting process are transferred
produce SO2, converted to SO3
gas in the conversion process,
and combined with H2O to
produce H2SO4 (sulphuric acid).
LS-Nikko Copper is producing
thorough process control and
LS-Nikko Copper is manufacturing and supplying high quality chemical materials based
on extensive experience and technology in the precision chemicals field. Particularly,
the PSA plant established in 1989 to deploy downstream and diversify business is
manufacturing sulphuric acid for semiconductors using the sulfurous acid gas produced
in the copper smelting process, and the Onsan Plant is the one and only place in the
world that implements this process.
TECHNOLOGY We constructed the PSA Plant in 1989 to deploy downstream and diversify business and have been
producing sulphuric acid for semiconductors using technology introduced from Mitsubishi and IWAKI
Glass of Japan. Currently, the plant is manufacturing high purity and high quality sulphuric acid
through the development of our own technology and process and facility improvements, while also
continuously improving quality. High purity sulphuric acid is supplied to distinguished semiconductor
companies in Korea, and annual production is 100,000 tons or greater.
LS-Nikko Copper produces gold and silver, precious metals of a 99.99% purity, in the final
stage of the smelting process. The precious metal products produced through repeated
refining and processing are used for jewelry and also industrial materials. LS-Nikko
Copper has been expanding the commercialization of rare metals such as selenium,
tellurium, and crude nickel sulphate.
TECHNOLOGY LS-Nikko Copper extracts a tiny amount of rare metals contained in the copper ore and
commercializes them into products. Gold, silver, platinum, palladium, and so on produced in the
final stage of the smelting process through repeated refining and processing are used for jewelry,
materials for artwork, and industrial materials.
Mixing Tower
SO3 Gas
Platinum(Pt)
communication and electronic parts,
pipe materials, alloy materials,
medicine and cosmetics
Annual Production Capacity
Ag Powder Ag Paste
transparent electrodes for flat
Annual Production Capacity
Automobile catalyst,
colorant (for manufacturing hydro,
sodium bisalphite), for manufacturing
reagents
Solar cell contact, internal
Fertilizer, food, steel,
Pd Se Te