昭和電工株式會社（Showa Denko K.K.，TYO: 4004）是著名的綜合性集團企業，生產的產品涉及到石油、化學、無機、鋁金屬、電子信息等多種領域。自1939年公司成立至今，集團在全球擁有139家關聯公司，11200餘名雇員，在全球開展富有個性化的事業。
昭和電工簡介,昭和電工事件,企業願景,公司歷史,
昭和電工簡介
現在的昭和電工除了石油、化學、無機、鋁加工產品以外，也生產電腦等的核心部件——硬碟電路板，並且採用昭和電工獨有的技術推進與中國的戰略合作，面向汽車，信息，電子元件市場，以稀土磁鐵用合金事業等信息相關部件、構件等作為主力事業。其中本公司的硬碟生產量占全世界份額20%，市場銷售量也處於領先地位。另外,昭和電工集團已經在上海區域設立了6個分公司,並以此為中心在全中國的11個分公司開拓事業。
昭和電工事件
昭和電工事件,發生於1948年的日本戰後四大醜聞事件之一（另三個為造船醜聞事件、洛克希德事件、里庫路特事件），起源於昭和電工公司為了獲得30 億日元政府貸款，向首相、議員、官僚行賄7000萬日元的事件，導致以蘆田均為首相的社會黨、民主黨、國民協同黨三黨聯合內閣倒台，蘆田均被迫辭職並旋即被捕。吉田茂藉此機會上台執政，並成功長期維持了政權。麥克阿瑟同時認為，以社會黨、民主黨等為主的中道政治在日本已不可行。
企業願景
Showa Denko Group will provide products and services that are useful and safe and exceed our customers' expectations, thereby enhancing the value of the Group, giving satisfaction to our shareholders, and contributing to the sound growth of international society as a responsible corporate citizen.
公司歷史
Dec.1908：Sobo Marine Products K.K. was established by Showa Denko (SDK) founder, Nobuteru Mori, to manufacture and sell iodine in Chiba Prefecture. Sobo Marine Products subsequently developed into Nihon Iodine K.K.
Oct.1926：Nihon Iodine K.K. was establilshed.
Apr.1928：Showa Fertilizers K.K. was established.
Mar.1934：Nihon Iodine K.K. was renamed as Nihon Electrical Industries K.K.
Jun.1939：Nihon Electrical Industries and Showa Fertilizers merged to form Showa Denko K.K.
May.1949：SDK was listed on Tokyo Stock Exchange.
Sept.1951：SDK was awarded the first Deming Prize.
Apr.1969：Oita Petrochemical Complex started commercial operation.
Mar.1977：Second expansion project of ethylene production capacity was completed at SDK Oita Petrochemical Complex.
Feb.1986：SDK withdrew from its domestic aluminum smelting business.
Nov.1989：Hard Disk Plant No. 1 was completed at Chiba.
Jan.1995：Omachi Works obtained ISO 9001 certification.
May.1997：Production Technology Center obtained ISO 14001 certification.
Mar.2001：SDK merged with Showa Aluminum Corporation.
Sept.2003：Japan Polyolefins Co., Ltd. and Japan Polychem Corporation integrated the polyethylene businesses and established a new joint venture company.
Jul.2004：Trace Strage Technology Corp., become a consolidated subsidiary.
Nov.2004：SDK announced to produce high-power blue LED chips.
Mar.2005 ：SDK sold shares in SDS Biotech K.K. via MBO scheme.
Jul.2005 ：SDK started production of world's first perpendicular magnetic recording technology HD media.
Jan.2006 ：SDK satarted its new medium-term consolidated business plan "PASSION Project" for the 2006-2008 period.
Sept.2006 ：SDK satarted up new aluminum cylinders plant in Oita.
Dec.2006 ：SDK opened its new hard disk media plant in Singapore.
Feb.2007 ：SDK develops new crystal growth technology for GaN-based blue/white LEDs.
Sept.2007 ：SDK opened its second neodymium-based alloys plant in China.
Jun.2008 ：Showa Tansan Co., Ltd. become a consolidated subsidiary.
