Zvose zvakasara zvekugadzirwa kwegore muna 2010 zvakapfuura 1,4 bilioni metric tonnes, zvichikwira 15% kubva muna 2009. Nyika gumi yevhizimisi vese midzi yakawanda yakaenzanisira inenge 25% yehuwandu hwekugadzira.
Shamba yezvigadzirwa zvemhando yechipfuva pedyo nemakambani emazita akanyorwa pasi apa anobva kuWorld Steel Association uye akaratidzwa mumamiriyoni ematric tonnes (MMT).
Cherechedza: Zita haritauri makambani eNhengo Steel Association ayo ari chikamu chekubatana nevasiri vamiririri
01 ArcelorMittal SA - 98.2 MMT
ArcelorMittal SA ndiro guru guru rekugadzira mashizha, rinoverengera kune inopfuura 6% yehupfumi hwepasi rose husina basa. Ari mumusha weLuxembourg, ArcelorMittal inobata mabasa munyika dzinopfuura makumi matanhatu uye mari yegore roga roga inodarika US $ 70 biliyoni (2010).
02 Baosteel - 37.0 MMT
Baosteel Group Corporation (Baosteel) is a Chinese company owned by Baoshan Iron & Steel Co. Ltd., Guangdong Iron & Steel Group Co., Xinjiang Bayi Iron & Steel Co. Ltd., Ningbo Iron & Steel Co. Ltd pamwe chete nehuwandu hwekugadzirwa kwesimbi, engineering uye masangano ekutsvaga mari.
Nhatu hurukuro yekambani yekugadzirwa kwesimbi inosanganisira zvakananga carbon steels, stainlessless steels , uye mahofisi chaiwo. Pakupera kwa2010, Baosteel aiva nemari inoshandiswa paRMB 432.1 mabhiriyoni, aiva negore rekushandisa mari yeRMB 273 mabhiriyoni uye akashanda 118 500 vanhu.
03 POSCO - 35.4 MMT
Yakasimbiswa muna 1968, Pohang Iron and Steel Company (POSCO) inoshandisa zvipfeko zviviri zvakashongedzwa muSouth Korea uye kubatana kweSouth Steel (USS-POSCO) muCalifornia. Mazai emidziyo yakawanda inosanganisira simbi yakatsvaira, simbi yesimbi, fironi, firi yakakonzerwa, simbi yemagetsi uye midziyo yekusina tsvina.
04 Nippon Steel Corp. - 35.0 MMT
Nippon Steel Corporation ndiro guru reJapan rakagadzirisa simbi, rinobudisa mamiriyoni 35 emamiriyoni emataundi emucheka wakaoma muna 2010. Nippon Steel anoshandisa vashandi vanopfuura 50 000 uye inoshandiswa kuTokyo Stock Exchange.
05 JFE Holdings - 31.1 MMT
JFE Holdings Inc. (Japan) ikambani yemubereki weJFE Steel Corp., imwe yenyika huru yakawanda yakawanda yevatengesi vesimbi. Kushanda mahofisi makuru maviri eJapan Steel, JFE Steel yakaumbwa muna 2002 semugumisiro wekubatanidzwa kweK NK neKaasaki Steel Corp. Kambani iyi yakanga ine yekutengeswa yen yen 2,747.4 mabhiriyoni muna 2010 uye inotengeswa kuTokyo Stock Exchange.
06 Jiangsu Shagang Group - 23.2 MMT
Jiangsu Shagang Group, kana Shagang Group, ikambani yevabereki veShasteel, guru guru guru rekugadzirwa kwesimbi muChina. Yakasimbiswa muna 1975, pakupera kwa2010 Shasteel aiva nemafuta anokwana RMB 132 mabhiriyoni uye akashanda vanopfuura 35 000 vashandi. Iko yekambani yekugadzira kwemazana emagetsi imamiriyoni makumi matatu ematare ematare, 35 mamiriyoni matani esimbi uye matani makumi emamiriyoni makumi matatu ematanda akaiswa.
07 Tata Steel - 23.2 MMT
Tata Steel (yaimbova Tata Iron and Steel Company Limited) inobatsira neboka reTata. Yakasimbiswa muna 1907, Tata Steel ine gore rinenge risina basa rekubudisa michina yeMMT anopfuura 28 uye rine maitiro munyika 26. Nekushanda kwemari yakabhadharwa US $ 22.8 mabhiriyoni mumutero we 2010, kambani inoshandisawo vanopfuura 80 000 vashandi kumakondinendi mashanu.
08 US Steel - 22.3 MMT
United States Steel Corporation (US Steel) yakaumbwa muna 1901 uye ndiyo inonyanya kukoshesa pfuma yemuchina muSouth America. Muchikamu chePittsburgh, Pennsylvania, kambani iyi yakabatanidzwa nhepfenyuro yehupfumi inosanganisira Gary Works, Great Lakes Works, Mon Valley Works, Granite City Works, Fairfield Works, Lake Erie Works, Hamilton Works uye US Steel Kosice (Slovak Republic). US Steel yakawana mari ye US $ 17.37 mabhiriyoni muna 2010 uye inoshandisa vanenge 42 000 vashandi.
09 Ansteel - 22.1 MMT
Angang Steel Co. Ltd. (Ansteel) ndiye wechipiri-mukuru muChinese ane pfuma yemuchina. Yakatangwa muna 1997 uye yakabatanidzwa muAnshan, kuchamhembe kwakadziva kumabvazuva kweChina, kambani yakanga ine mari yekushandisa yeRMB 92.4 mabhiriyoni uye mari yeRMB 2.3 mabhiriyoni muna 2010.
10 Gerdau - 18.7 MMT
Gerdau mubazi weBrazilian iron uye muve mukuru wesimbi yakareba muAmerica. Yakagadzwa muna 1901, kambani ikozvino ine gore rekugadzira kukwanisa kweMMT 25 uye inoshanda munyika 14. Aine vashandi vanopfuura 40 000, Gerdau anogadzira kwenguva yakareba carbon, yakareba yakagadzirwa nesimbi, flat iron pamwe chete uye yakaumbwa uye yakakanda zvikamu.