中铁四局集团有限公司

自成立六十多年来，中国中铁四局集团有限公司先后新建、改建、扩建铁路干线、支线13200多公里，建成大型铁路枢纽14个，并在高速公路、市政、水利水务、汽车试验场、城市轨道交通、工业与民用建筑、电气化工程等施工领域取得辉煌业绩和卓著信誉。同时，公司积极参与国际市场竞争，在20多个国家和地区完成或正在施工铁路、公路、房建、水利等工程百余项。所建工程中，先后有19项获中国建筑工程鲁班奖（国家优质工程）；16项获中国土木工程詹天佑大奖；15项被评为全国用户满意建筑工程；8项被评为国家市政金杯示范工程；14项被评为全国优秀焊接工程；16项获中国建筑钢结构金奖；13项荣获国家优质工程奖；185项获省部级优质工程奖；8项成果荣获国家级科技进步奖，92项成果荣获省部级科技进步奖；所编制的工法中，19项被评定为国家级工法， 142项被评定为省部级工法。公司现拥有专利146项，其中发明专利28项。

中国中铁四局集团有限公司为国家级高新技术企业，并建有国家级企业技术中心和博士后工作站。公司现有员工21000名，包括各类专业技术人员11700余人，各类技术工人8600余人。其中，具有高中级技术职称的专业技术人员4290名（包括55名专家享受国家、部、省特殊津贴，53名教授级高级工程师）。目前，公司拥有各类先进机械设备9800余台（套），总功率达109万千瓦。其中，用于铁路客运专线重型桥梁制、运、架及轨道生产、铺设，城市地铁区间施工，高速公路路面施工的大型设备近二百套（台）。由于卓越的管理和良好的信誉，中国中铁四局集团有限公司成为自铁道部2005年开展铁路信用评价以来，在近百家铁路施工企业中唯一一家连续位居A类企业的单位，获得银行授信额度499亿元；多次荣获“全国优秀施工企业”称号和“全国五一劳动奖状”，先后被评为“全国重合同守信用企业”、“全国工程建设质量管理优秀企业”、“全国建筑科技进步与技术创新先进单位”、“全国思想政治工作优秀企业”、“全国模范劳动关系和谐企业”。

As a large-scaled construction enterprise and a model subsidiary of China Railway Engineering Corporation, one of Fortune Global 500, China Tiesiju Civil Engineering Group Co., Ltd.(CTCE), possesses a series of government-registered or issued qualification certificates as follows: super class general contractor of railway engineering; class A general contractor for highway engineering, municipal works, building works and electromechanical equipment installation works; class A specialized contractor for more than a dozen of categories of works, inclusive of bridge, tunnel, highway bed and surface, railway track-laying and girder-erection, railway electric power, communications, signaling, electrification engineering, telecommunication engineering, architectural decoration, fire control facilities, hydraulic tunnel and steel structure; specialized contractor of highway transportation engineering and urban mass transit engineering, class B general contractor of water conservancy and hydropower engineering; grade-one contractor of environment protection engineering and geological hazard control engineering; grade-one designer of steel structures, railways and buildings. It is also licensed to conduct business and contract engineering projects abroad. Besides, it engages in architectural survey and design, new construction material manufacture，railway operation services, construction machinery rental services, equipment and material export, real estate development and investment in infrastructure. 
In the past over 60 years since its establishment, China Tiesiju Civil Engineering Group Co Ltd has constructed, renovated, extended more than 13 thousand km of railway lines, as well as 14 large-scaled railway junctions. It has also made remarkable achievements and won a high reputation in the fields of construction of expressways, municipal engineering, automobile proving grounds, urban mass transit engineering, industrial & civil buildings, electrification engineering, and so on. By active participation of international market, it has been fairly internationalized by undertaking about one hundred projects including railways, highways, industrial & civil buildings, water conservancy works, in over 20 countries or regions. Of these above-mentioned projects, 18 won Luban Prize for National Architectural Engineering Project, 16 were awarded Zhantianyou Grand Prize for National Civil Engineering, 15 won State Consumer-Satisfying Architectural Project Prize, 8 obtained State Municipal Demonstration Engineering Golden Cup Prize, 18 won State Excellent Welding Engineering Prize, 15 got National Building Steel Structure Golden Prize, 13 won State Quality Prize, and as many as 185 obtained provincial or ministerial-level high-quality project prize. Due to its constant innovation, 8 scientific and technological achievements won State Scientific & Technological Progress Prize, 92 gained Scientific & Technological Progress Prizes at provincial or ministerial level. 19 construction techniques developed by the corporation were adopted as state-level construction methodologies, and 142 ones the provincial-level construction methodologies. And by now, the corporation owns 146 patents, of which 28 are patents of invention.
As a state-authorized hi-tech enterprise, CTCE has established a state-level technological center, as well as a post-doctoral work station. And among the over 11,700 technical personnel, it has 4290 medium or senior professionals, of which 55 ones enjoy the Government-offered Special Expert Allowance, 53 ones own the professional title of professor-level senior engineer. In addition, it is also staffed with about 8，651 skilled workers. It is equipped with more than 9,800 pieces or sets of advanced production facilities totaling 1.09 million KW. Among these ones, over 200 sets or pieces are large modern equipment for construction of metro tunnel, production, transportation and erection of 900t or 750t box girders of passenger special railway, manufacturing and laying of ballastless slab track, or for construction of highway asphalt surface. Based on the excellent management and achievements, it has in recent years been assessed as one of Grade-A construction enterprises consecutively through the credit rating activities organized by the Ministry of Railways, being the only construction enterprise which won such as an achievement among nearly 100 contractor of railway engineering, and has been given overall credit lines of ￥ 49.9 billion. In addition, it won the titles of National Excellent Construction Enterprise, State Excellent Enterprise for Ideological Work, State Contract-Observing and Promise-Keeping Enterprise, State Excellent Enterprise for Engineering Construction Quality Control, State Model Harmonious Enterprise for Labor Relation, as well as the Labor Honorary Credential of May Day.