The economy of Eritrea has undergone extreme changes after the War of Independence. It experienced considerable growth in recent years, indicated by an improvement in gross domestic product in 2011 of 8.7 percent and in 2012 of 7.5% over 2011, and has a total of $8.090 billion as of 2020. However, worker remittances from abroad are estimated to account for 32 percent of gross domestic product.
Mining is the extraction of valuable geological materials from the Earth and other astronomical objects. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. The ore must be a rock or mineral that contains valuable constituent, can be extracted or mined and sold for profit. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water.
Excavators are heavy construction equipment consisting of a boom, dipper, bucket and cab on a rotating platform known as the "house". The house sits atop an undercarriage with tracks or wheels. They are a natural progression from the steam shovels and often mistakenly called power shovels, as power shovels may have similar looking buckets. All movement and functions of a hydraulic excavator are accomplished through the use of hydraulic fluid, with hydraulic cylinders and hydraulic motors. Due to the linear actuation of hydraulic cylinders, their mode of operation is fundamentally different from cable-operated excavators, which use winches and steel ropes to accomplish the movements.
Heavy equipment, heavy machinery, earthmovers, construction vehicles, or construction equipment, refers to heavy-duty vehicles specially designed to execute construction tasks, most frequently involving earthwork operations or other large construction tasks. Heavy equipment usually comprises five equipment systems: the implement, traction, structure, power train, and control/information.
Eastman Chemical Company is an American company primarily involved in the chemical industry. Once a subsidiary of Kodak, today it is an independent global specialty materials company that produces a broad range of advanced materials, chemicals and fibers for everyday purposes. Founded in 1920 and based in Kingsport, Tennessee, the company now has more than 50 manufacturing sites worldwide and employs approximately 14,000 people.
Tata Steel Limited is an Indian multinational steel-making company, based in Jamshedpur, Jharkhand and headquartered in Mumbai, Maharashtra. It is a part of the Tata Group.
ThyssenKrupp AG is a German industrial engineering and steel production multinational conglomerate. It resulted from the 1999 merger of Thyssen AG and Krupp and has its operational headquarters in Duisburg and Essen. The company claims to be one of the world's largest steel producers, and it was ranked tenth-largest worldwide by revenue in 2015. It is divided into 670 subsidiaries worldwide. The largest shareholders are the Alfried Krupp von Bohlen und Halbach Foundation and Cevian Capital. ThyssenKrupp's products range from machines and industrial services to high-speed trains, elevators, and shipbuilding. The subsidiary ThyssenKrupp Marine Systems also manufactures frigates, corvettes, and submarines for the German and foreign navies.
Scrap consists of recyclable materials, usually metals, left over from product manufacturing and consumption, such as parts of vehicles, building supplies, and surplus materials. Unlike waste, scrap has monetary value, especially recovered metals, and non-metallic materials are also recovered for recycling. Once collected, the materials are sorted into types — typically metal scrap will be crushed, shredded, and sorted using mechanical processes.
The Caterpillar D11T is a large bulldozer, manufactured by Caterpillar Inc. in East Peoria, Illinois, and mainly used in the mining industry. Primarily designed as a bulldozer, it is also used for push-loading scrapers, and ripping rock overburden.
Bagger 288, built by the German company Krupp for the energy and mining firm Rheinbraun, is a bucket-wheel excavator or mobile strip mining machine.
The Euclid Company of Ohio was a company that specialized in heavy equipment for earthmoving, namely dump trucks, loaders and wheel tractor-scrapers. It operated in the US from the 1920s to the 1950s, when it was purchased by General Motors. It was later purchased by Hitachi Construction Machinery.
Bradken is a manufacturer and supplier of differentiated consumable and capital products to the mining, transport, general industrial and contract manufacturing markets with operations in Australia, China, Canada, India, Malaysia and the United States. It is a subsidiary of Hitachi Construction Machinery.
FLSmidth & Co. A/S is a Danish multinational technology company based in Copenhagen, Denmark. With almost 11,000 employees worldwide, it provides the global mining and cement industries with equipment and services. For the mining industry, the company provides technology for copper, gold, nickel, zinc and lithium mining, and for the cement industry, it provides technology for cement production. FLSmidth is listed on NASDAQ OMX Nordic Copenhagen in the C25 index and has offices in more than 60 countries worldwide.
Syncron is an aftermarket service software company with a global presence. Syncron's global headquarters are located in Stockholm, Sweden, with major subsidiary offices around the world located in the United States, United Kingdom, Japan, France, Germany, Italy, India, and Poland. Syncron was ranked as the fastest growing supply chain management software supplier for 2007 and 2008, in the annual Deloitte Fast 500 Technology Awards, EMEA region.
The environmental impact of the energy industry is significant, as energy and natural resource consumption are closely related. Producing, transporting, or consuming energy all have an environmental impact. Energy has been harnessed by human beings for millennia. Initially it was with the use of fire for light, heat, cooking and for safety, and its use can be traced back at least 1.9 million years. In recent years there has been a trend towards the increased commercialization of various renewable energy sources. Scientific consensus on some of the main human activities that contribute to global warming are considered to be increasing concentrations of greenhouse gases, causing a warming effect, global changes to land surface, such as deforestation, for a warming effect, increasing concentrations of aerosols, mainly for a cooling effect.
Zoomlion Heavy Industry Science and Technology Co., Ltd. is a Chinese construction machinery and agricultural machinery manufacturer. Its headquarters are in the Zoomlion Science Park in Changsha, Hunan, China. Zoomlion is China's largest and world's fifth largest construction machinery enterprise.
The steel industry in China has been driven by rapid modernisation of its economy, construction, infrastructure and manufacturing industries.
Liebherr is a German-Swiss multinational equipment manufacturer based in Bulle, Switzerland, with its main production facilities and origins in Germany.
Xuzhou Construction Machinery Group Co., Ltd. is a Chinese multinational state-owned heavy machinery manufacturing company with headquarters in Xuzhou, Jiangsu. Founded in 1943, XCMG currently ranks first in the Chinese construction machinery industry, 3rd in the world, 4th in China's top 100 machinery enterprises, and 409th in the world's top 500 brands. Recently the company has taken over Schwing GmbH. Schwing a German manufacturer of mobile and stationary concrete pumps and truck mixers, headquartered in Herne, as well as the parent company of Schwing Stetter, based in Memmingen. The business group is the world's second largest concrete pump manufacturer, behind Putzmeister, another German manufacturer and subsidiary of the Sany Group.
Sofidel is an Italian multinational producer of tissue paper for sanitary and domestic use. The Sofidel Group was founded in 1966. It is one of the world leaders in the tissue paper market and the second largest producer in Europe behind Essity. The privately held company is owned by the Stefani and Lazzareschi families, has subsidiaries in 13 countries and more than 6,600 employees.
