Tronox

Tronox Limited kamfani ne na sinadarai na Amurka da ke da hannu a masana'antar kayayyakin titanium, wanda ke da ma'aikata kusan 6,500. Bayan da ta sayi kasuwancin yashi na ma'adinai wanda a da mallakar Exxaro Resources na Afirka ta Kudu ne, Tronox ita ce babbar mai siyarwa da tallata titanium dioxide ( TiO2 ) mai cikakken haɗin kai, wanda ke ba da haske ga aikace-aikace kamar su shafa, robobi da takarda. Tronox tana haƙo yashi mai ɗauke da titanium kuma tana gudanar da ayyukan haɓakawa waɗanda ke samar da kayan abinci na titanium masu inganci, ƙarfen alade da sauran ma'adanai, gami da ma'adinan da ba a saba gani ba, monazite. Tronox kuma tana sayar da titanium ma'adinai - babban abincin titanium dioxide - da zircon kai tsaye ga abokan ciniki.

Tronox ita ce ta uku mafi girma wajen samar da kayan abinci na titanium, tare da kusan kashi 10% na samar da ma'adinan titanium a duniya; kuma ta biyu mafi girma wajen samar da zircon, tare da kusan kashi 20% na samar da kayayyaki a duniya. Kamfanin yana kuma da kasuwancin sinadarai na electrolytic da na musamman wanda ke kula da masana'antar takarda da batura. A da, wani bangare ne na Kerr-McGee Chemical Corporation kuma yana da hedikwata a Oklahoma City tun lokacin da aka kafa shi daga iyayensa a shekarar 2005, kamfanin ya sanar a watan Yunin 2012 cewa zai mayar da hedikwatarsa zuwa Stamford, Connecticut .   

 Tarihi 
Kamfanin ya fara aiki a bainar jama'a a shekarar 2005, lokacin da Kerr-McGee, wanda ke zaune a Oklahoma City, wanda a da ya mallaki kamfanin gaba ɗaya, ya bayar da hannun jari ta hanyar tayin farko na jama'a a ranar 21 ga Nuwamba, 2005. Ya zama kamfani mai zaman kansa a watan Maris na 2006.  

A cikin kwata na farko na 2006, Tronox ta maye gurbin Meade Instruments a kan ma'aunin S&amp;P SmallCap 600, lokacin da Kerr-McGee ta rarraba sauran hannun jarinta a Tronox a ƙarƙashin tsohuwar alamar NYSE TRX.B, tsaro na aji B. TRX.B ta fara ciniki na yau da kullun a ranar 31 ga Maris, 2006.

A shekarar 2009, masu hannun jari na Tronox sun kai ƙarar Anadarko Petroleum (wanda ya gaji Kerr-McGee ) saboda ya yaudari masu zuba jari game da manyan basussukan muhalli da sauran basussukan da Tronox za ta gada daga kamfanin iyayenta.     Gurɓatar muhalli ta haɗa da gurɓatar da Tafkin Mead a Nevada da man roka, barin tarin sharar rediyo a duk faɗin ƙasar Navajo da kuma zubar da ƙwayoyin cuta masu haifar da cutar kansa a cikin al'ummomi a duk faɗin Gabas, Midwest da Kudu a wuraren sarrafa itace. 

 Tsarin Kerr-McGee 
Kerr-McGee ta fara kasuwancinta na sinadarai a tsakanin 2005-2006 bayan da wani mai satar fasaha na kamfani kuma babban mai hannun jari a Kerr-McGee, Carl Icahn, ya gabatar da buƙatu. 

Daga cikin wasu abubuwa, Tronox ta gaji wurare da dama na sharar rediyoaktif daga Kerr-McGee. Waɗannan sun haɗa da Cibiyar Ƙirƙirar Man Fetur ta Cimarron da Cibiyar Rare Earths . Har yanzu suna kan aikin tsaftacewa.  

Haka kuma ta gaji wurin "BMI" na Henderson, Nevada. Wannan wurin ya samar da Magnesium da sauran sinadarai tun daga lokacin Yaƙin Duniya na Biyu. Daga ƙarshe ya zubar da perchlorate (wanda aka yi amfani da shi a man roka) a cikin ruwan, wanda daga baya ya gurɓata tafkin Mead da Kogin Colorado, waɗanda ke samar da ruwa ga miliyoyin mutane.  

Bayan ficewa daga fatara a watan Fabrairun 2011, shirin Tronox na Babi na 11 ya ƙirƙiri amintaccen shari'a na Anadarko don ci gaba da shari'ar Tronox akan Anadarko da Kerr-McGee. Tronox ta miƙa kashi 88% na ribar da take da ita a shari'ar ga gwamnatin tarayya. 

 Manazarta