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創建于1951年，國內規模較大的井礦鹽供應商，主要從事食用鹽/工業鹽/液體鹽/品種鹽的研究開發/生產銷售，兼營天然氣、新型復合材料、房地產等領域的多元化產業企業

20世紀初，為(wei)改良鹽(yan)(yan)(yan)(yan)(yan)(yan)質(zhi)，讓國(guo)人(ren)吃上干凈鹽(yan)(yan)(yan)(yan)(yan)(yan)、便宜鹽(yan)(yan)(yan)(yan)(yan)(yan)，1914年，范旭(xu)東(dong)(dong)在(zai)天津(jin)塘沽創(chuang)辦“久(jiu)大(da)精鹽(yan)(yan)(yan)(yan)(yan)(yan)公(gong)(gong)司(si)”。1916年，久(jiu)大(da)精鹽(yan)(yan)(yan)(yan)(yan)(yan)公(gong)(gong)司(si)生產的(de)(de)中國(guo)第一(yi)批精鹽(yan)(yan)(yan)(yan)(yan)(yan)，色白、粒細、純度高，結(jie)束了(le)(le)(le)國(guo)人(ren)只(zhi)能吃粗糙(cao)、劣質(zhi)鹽(yan)(yan)(yan)(yan)(yan)(yan)的(de)(de)歷史。“七·七”盧(lu)溝橋(qiao)事件爆發(fa)后(hou)，范旭(xu)東(dong)(dong)不愿(yuan)與日本人(ren)合作，于1938年7月將“久(jiu)大(da)精鹽(yan)(yan)(yan)(yan)(yan)(yan)公(gong)(gong)司(si)”遷至四(si)川(chuan)自(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)貢(gong)(gong)(gong)(gong)自(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)流井(jing)(jing)(jing)張家(jia)壩，創(chuang)辦了(le)(le)(le)“久(jiu)大(da)鹽(yan)(yan)(yan)(yan)(yan)(yan)業(ye)(ye)公(gong)(gong)司(si)自(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)貢(gong)(gong)(gong)(gong)模范制(zhi)鹽(yan)(yan)(yan)(yan)(yan)(yan)廠(chang)(chang)(chang)”，即自(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)貢(gong)(gong)(gong)(gong)市(shi)(shi)張家(jia)壩制(zhi)鹽(yan)(yan)(yan)(yan)(yan)(yan)化(hua)工廠(chang)(chang)(chang)前身。建國(guo)初期，久(jiu)大(da)鹽(yan)(yan)(yan)(yan)(yan)(yan)業(ye)(ye)公(gong)(gong)司(si)實行公(gong)(gong)私(si)合營，于1951年成立了(le)(le)(le)“公(gong)(gong)私(si)合營自(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)貢(gong)(gong)(gong)(gong)久(jiu)大(da)制(zhi)鹽(yan)(yan)(yan)(yan)(yan)(yan)股份有(you)限公(gong)(gong)司(si)”。幾經更替(ti)，自(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)貢(gong)(gong)(gong)(gong)鹽(yan)(yan)(yan)(yan)(yan)(yan)業(ye)(ye)實施國(guo)有(you)化(hua)改革，逐步組建了(le)(le)(le)自(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)貢(gong)(gong)(gong)(gong)市(shi)(shi)張家(jia)壩制(zhi)鹽(yan)(yan)(yan)(yan)(yan)(yan)化(hua)工廠(chang)(chang)(chang)、自(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)貢(gong)(gong)(gong)(gong)市(shi)(shi)大(da)安(an)鹽(yan)(yan)(yan)(yan)(yan)(yan)廠(chang)(chang)(chang)、自(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)貢(gong)(gong)(gong)(gong)市(shi)(shi)自(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)流井(jing)(jing)(jing)鹽(yan)(yan)(yan)(yan)(yan)(yan)廠(chang)(chang)(chang)、自(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)貢(gong)(gong)(gong)(gong)市(shi)(shi)貢(gong)(gong)(gong)(gong)井(jing)(jing)(jing)鹽(yan)(yan)(yan)(yan)(yan)(yan)廠(chang)(chang)(chang)、自(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)貢(gong)(gong)(gong)(gong)市(shi)(shi)鄧關(guan)鹽(yan)(yan)(yan)(yan)(yan)(yan)廠(chang)(chang)(chang)五大(da)鹽(yan)(yan)(yan)(yan)(yan)(yan)業(ye)(ye)企業(ye)(ye)。1991年3月，經四(si)川(chuan)省經貿委批準組建以自(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)貢(gong)(gong)(gong)(gong)市(shi)(shi)張家(jia)壩制(zhi)鹽(yan)(yan)(yan)(yan)(yan)(yan)化(hua)工廠(chang)(chang)(chang)、自(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)貢(gong)(gong)(gong)(gong)市(shi)(shi)大(da)安(an)鹽(yan)(yan)(yan)(yan)(yan)(yan)廠(chang)(chang)(chang)、長(chang)山鹽(yan)(yan)(yan)(yan)(yan)(yan)礦(kuang)、井(jing)(jing)(jing)礦(kuang)鹽(yan)(yan)(yan)(yan)(yan)(yan)設計研究院(yuan)、自(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)貢(gong)(gong)(gong)(gong)市(shi)(shi)自(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)流井(jing)(jing)(jing)鹽(yan)(yan)(yan)(yan)(yan)(yan)廠(chang)(chang)(chang)、自(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)貢(gong)(gong)(gong)(gong)市(shi)(shi)貢(gong)(gong)(gong)(gong)井(jing)(jing)(jing)鹽(yan)(yan)(yan)(yan)(yan)(yan)廠(chang)(chang)(chang)、自(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)貢(gong)(gong)(gong)(gong)市(shi)(shi)鄧關(guan)鹽(yan)(yan)(yan)(yan)(yan)(yan)廠(chang)(chang)(chang)、鹽(yan)(yan)(yan)(yan)(yan)(yan)業(ye)(ye)地(di)址鉆(zhan)井(jing)(jing)(jing)大(da)隊(dui)、輕工機械廠(chang)(chang)(chang)、舒(shu)平鹽(yan)(yan)(yan)(yan)(yan)(yan)廠(chang)(chang)(chang)、鹽(yan)(yan)(yan)(yan)(yan)(yan)業(ye)(ye)技工學校11個單位(wei)為(wei)核心的(de)(de)四(si)川(chuan)久(jiu)大(da)鹽(yan)(yan)(yan)(yan)(yan)(yan)業(ye)(ye)（集團）公(gong)(gong)司(si)。

四(si)川久(jiu)大鹽(yan)(yan)(yan)業（集團）公司地處(chu)“千年鹽(yan)(yan)(yan)都”—四(si)川省自貢市，具有2000多年悠久(jiu)的產鹽(yan)(yan)(yan)歷史，所處(chu)威(wei)西礦區(qu)，鹽(yan)(yan)(yan)鹵資(zi)源(yuan)豐富，已勘探查明(ming)開(kai)采儲量約(yue)14296萬噸，且質地純、品質優、富含27種微量元素和(he)40余種常量元素，是天然環保、有利(li)于人體健康(kang)的優質原料。

四川(chuan)久大鹽(yan)(yan)(yan)(yan)業（集團）公(gong)(gong)司(si)(si)改(gai)制(zhi)(zhi)企業“四川(chuan)久大制(zhi)(zhi)鹽(yan)(yan)(yan)(yan)有限(xian)責任(ren)公(gong)(gong)司(si)(si)”現(xian)有員工(gong)(gong)近(jin)(jin)3000人，資產(chan)總額(e)34億元，主要從事食(shi)用(yong)鹽(yan)(yan)(yan)(yan)、工(gong)(gong)業用(yong)鹽(yan)(yan)(yan)(yan)、品(pin)(pin)種(zhong)鹽(yan)(yan)(yan)(yan)的研究(jiu)開發、制(zhi)(zhi)造(zao)和銷售。公(gong)(gong)司(si)(si)擁(yong)有四川(chuan)自(zi)貢、遂寧大英、湖北應城三(san)大制(zhi)(zhi)鹽(yan)(yan)(yan)(yan)基(ji)地(di)，制(zhi)(zhi)鹽(yan)(yan)(yan)(yan)生產(chan)能力(li)近(jin)(jin)300萬噸/年。 公(gong)(gong)司(si)(si)掌握著我國(guo)真空制(zhi)(zhi)鹽(yan)(yan)(yan)(yan)工(gong)(gong)藝設備裝(zhuang)置的核心(xin)技術(shu)，擁(yong)有全國(guo)鹽(yan)(yan)(yan)(yan)行業國(guo)家(jia)認定企業技術(shu)中(zhong)(zhong)心(xin)、綜(zong)合性甲級設計研究(jiu)院、全國(guo)井礦(kuang)鹽(yan)(yan)(yan)(yan)工(gong)(gong)業信息中(zhong)(zhong)心(xin)、全國(guo)井礦(kuang)鹽(yan)(yan)(yan)(yan)產(chan)品(pin)(pin)質量檢測中(zhong)(zhong)心(xin)，先后(hou)承(cheng)擔(dan)國(guo)家(jia)、省（部）、市(shi)(shi)重點科研項目100多(duo)項，已(yi)開發出6大系列近(jin)(jin)200多(duo)個品(pin)(pin)種(zhong)的產(chan)品(pin)(pin)。公(gong)(gong)司(si)(si)產(chan)品(pin)(pin)獲(huo)得(de)ISO09001:2015標(biao)準國(guo)際質量管(guan)理體系認證，主產(chan)品(pin)(pin)自(zi)流井牌精制(zhi)(zhi)鹽(yan)(yan)(yan)(yan)。2017年1月(yue)1日鹽(yan)(yan)(yan)(yan)業體制(zhi)(zhi)改(gai)革實(shi)施以來(lai)，四川(chuan)久大制(zhi)(zhi)鹽(yan)(yan)(yan)(yan)有限(xian)責任(ren)公(gong)(gong)司(si)(si)直接進入市(shi)(shi)場(chang)(chang)(chang)自(zi)建(jian)銷售渠(qu)道，大力(li)開拓(tuo)市(shi)(shi)場(chang)(chang)(chang)，通過兩(liang)年多(duo)的努力(li)，公(gong)(gong)司(si)(si)及旗下企業已(yi)在(zai)全國(guo)建(jian)立了200多(duo)個分公(gong)(gong)司(si)(si)，擁(yong)有物流配送商、終(zhong)端客(ke)戶近(jin)(jin)20萬個，食(shi)鹽(yan)(yan)(yan)(yan)產(chan)品(pin)(pin)進入了全國(guo)31個省、直轄市(shi)(shi)、自(zi)治區，四川(chuan)市(shi)(shi)場(chang)(chang)(chang)的占有率達(da)60%，全國(guo)市(shi)(shi)場(chang)(chang)(chang)占有率達(da)12%，并出口日本、韓國(guo)及東南(nan)亞(ya)地(di)區。

四川(chuan)久大(da)鹽業(ye)(ye)（集團）公(gong)司(si)改制企(qi)業(ye)(ye)“四川(chuan)久大(da)投資(zi)控(kong)股有限責任(ren)公(gong)司(si)”現有員工300多人，總資(zi)產(chan)1.98億元，主(zhu)要從事(shi)對外(wai)投資(zi)，巖(yan)鹽伴(ban)生(sheng)(sheng)天然氣(qi)開(kai)采(cai)(cai)、銷(xiao)售(shou)，白炭黑產(chan)品(pin)(pin)(pin)生(sheng)(sheng)產(chan)、銷(xiao)售(shou)，新型復(fu)合(he)材(cai)料制造、銷(xiao)售(shou)、安(an)裝，城市房地(di)產(chan)開(kai)發(fa)，物(wu)業(ye)(ye)管理(li)，建(jian)筑裝飾(shi)工程、銷(xiao)售(shou)建(jian)材(cai)、鋼材(cai)、五金交電，鹽產(chan)品(pin)(pin)(pin)生(sheng)(sheng)產(chan)、銷(xiao)售(shou)等(deng)業(ye)(ye)務。公(gong)司(si)堅持產(chan)業(ye)(ye)多元化(hua)，各產(chan)業(ye)(ye)均(jun)有較大(da)的(de)(de)(de)發(fa)展(zhan)潛(qian)力和空間。自貢天然氣(qi)儲量豐富，特(te)(te)(te)別是由于其(qi)開(kai)采(cai)(cai)層位(wei)低、投資(zi)少(shao)，受到戰略(lve)投資(zi)者的(de)(de)(de)青睞；公(gong)司(si)旗下(xia)白炭黑企(qi)業(ye)(ye)產(chan)品(pin)(pin)(pin)遠(yuan)(yuan)銷(xiao)全國各地(di)，特(te)(te)(te)別是在西(xi)南三省一市的(de)(de)(de)市場占有率較高，并出口(kou)日(ri)本及東(dong)(dong)南亞地(di)區；公(gong)司(si)旗下(xia)復(fu)合(he)材(cai)料企(qi)業(ye)(ye)產(chan)品(pin)(pin)(pin)廣(guang)泛應(ying)用于市政給(gei)排(pai)水、鹽化(hua)、醫藥、紡織、輕工、食品(pin)(pin)(pin)等(deng)領域(yu)，“中嘉牌”玻璃鋼管，部分產(chan)品(pin)(pin)(pin)遠(yuan)(yuan)銷(xiao)馬來(lai)西(xi)亞、印尼、越南、哈薩克斯坦等(deng)地(di)區。 2016年，公(gong)司(si)充分利用東(dong)(dong)源(yuan)(yuan)井(jing)國家文(wen)物(wu)保(bao)護單位(wei)這一獨特(te)(te)(te)鹽文(wen)化(hua)資(zi)源(yuan)(yuan)，進軍文(wen)化(hua)旅(lv)(lv)游(you)行業(ye)(ye)，合(he)資(zi)成立(li)了四川(chuan)久大(da)東(dong)(dong)源(yuan)(yuan)井(jing)旅(lv)(lv)游(you)開(kai)發(fa)有限公(gong)司(si)。目前，東(dong)(dong)源(yuan)(yuan)井(jing)的(de)(de)(de)打造、旅(lv)(lv)游(you)產(chan)品(pin)(pin)(pin)的(de)(de)(de)開(kai)發(fa)已初具規模，未來(lai)的(de)(de)(de)東(dong)(dong)源(yuan)(yuan)井(jing)將建(jian)成井(jing)鹽傳統文(wen)化(hua)展(zhan)示、游(you)覽、體(ti)驗園區，成為提升(sheng)自貢千年鹽都(dou)形象(xiang)的(de)(de)(de)又一閃亮(liang)旅(lv)(lv)游(you)名片。