• - ERCROS factory (initially Flix Electrochemical Society -SEQF, 1897-, which first collaborated and then became part of Cros") -founded in Barcelona by Francisco Cros"), 1817-, which in turn merged in 1989 with Rio Tinto explosives -ERT, a company derived from the Rio Tinto Company Limited, an English company that had exploited those Huelva mines since 1873-) in the Flix swamp. "With more than a century of history, Flix is the dean of the Ercros production centers and a pioneer in the basic chemistry sector in Spain. It manufactures caustic soda and chlorine, from which it produces sodium hypochlorite and hydrochloric acid and, from the latter product, dicalcium phosphate, which is manufactured in a maquila regime. Chlorine derivatives, due to their bleaching and disinfectant properties, are mainly used in purification of water, in domestic disinfection [bleach] and in the bleaching of fibers and paper."[7]​.

• - Cement plant, Sitges.

• - Warehouse of the old steel factory in Sagunto, Valencia.

• - Industrial warehouses on the outskirts of Ibi. The entire region (Hoya de Castalla) is called "toy valley")" -official website-. Other industrial areas of the province are specialized in nougat (Jijona) or shoes (Elda).

• - Industrial warehouses on the outskirts of Elda.

• - Aerial view of Cartagena "Cartagena (Spain)") and its port.

• - Cádiz Shipyards").

• - Huelva Chemical Pole.

• - Tire recycling"), Espeluy, Jaén.

• - Calvo Sotelo National Liquid Fuels and Lubricants Company -CS, 1942-, National Petroleum Company -Enpetrol, 1972-, Repsol, 1987 -Official website-, Puertollano.

• - Tres Cantos Business Park, Madrid.

• - Factories in Azuqueca de Henares.

• - "Béjar Textile Factories Route".

• - ACOR Sugar Bowl of Olmedo (Valladolid) "Olmedo (Valladolid)"). Industrial crops in Spain give rise to powerful industries such as sugar and tobacco. (Sugar Beet Museum, Sugar Industry of Andalusia, Azucarera de Nuestra Señora de las Mercedes-) Azucarera Española") or Azucarera Ebro"), today simply "Azucarera"... "was born in 1903 and rapidly expanded: in 1920 it already had about 65 factories spread throughout Spain. Already in the year 2000, Azucarera Ebro Agrícolas merged with Puleva and the result was the creation of Ebro Foods".[8]​.

• - IRZ carburetor factory (Isidro Rodríguez Zarracina")) from the mills, Valladolid (beginning of the 20th century) -Joaquín Díaz Foundation, Industrial Heritage of Valladolid-.

• - Miranda de Ebro industrial estate.

• - Aerial view of Martorell, highlights the SEAT.

• - Tarragona petrochemical complex")[6]. Petrochemistry in Spain") was implemented through political decisions, from the establishment of the oil monopoly in the Primo de Rivera Dictatorship -CAMPSA- and the choice of Puertollano (an inland location) for one of its main focuses. Others have a much earlier industrial tradition (from historical colonizations), such as the Huelva estuary and the Cartagena countryside. The Petrochemical Industry: current situation and perspectives. XIII Autumn Courses of the UCA in Algeciras-.

• - ERCROS factory (initially Flix Electrochemical Society -SEQF, 1897-, which first collaborated and then became part of Cros") -founded in Barcelona by Francisco Cros"), 1817-, which in turn merged in 1989 with Rio Tinto explosives -ERT, a company derived from the Rio Tinto Company Limited, an English company that had exploited those Huelva mines since 1873-) in the Flix swamp. "With more than a century of history, Flix is the dean of the Ercros production centers and a pioneer in the basic chemistry sector in Spain. It manufactures caustic soda and chlorine, from which it produces sodium hypochlorite and hydrochloric acid and, from the latter product, dicalcium phosphate, which is manufactured in a maquila regime. Chlorine derivatives, due to their bleaching and disinfectant properties, are mainly used in purification of water, in domestic disinfection [bleach] and in the bleaching of fibers and paper."[7]​.

• - Cement plant, Sitges.

• - Warehouse of the old steel factory in Sagunto, Valencia.

• - Industrial warehouses on the outskirts of Ibi. The entire region (Hoya de Castalla) is called "toy valley")" -official website-. Other industrial areas of the province are specialized in nougat (Jijona) or shoes (Elda).

• - Industrial warehouses on the outskirts of Elda.

• - Aerial view of Cartagena "Cartagena (Spain)") and its port.

• - Cádiz Shipyards").

• - Huelva Chemical Pole.

• - Tire recycling"), Espeluy, Jaén.

• - Calvo Sotelo National Liquid Fuels and Lubricants Company -CS, 1942-, National Petroleum Company -Enpetrol, 1972-, Repsol, 1987 -Official website-, Puertollano.

• - Tres Cantos Business Park, Madrid.

• - Factories in Azuqueca de Henares.

• - "Béjar Textile Factories Route".

• - ACOR Sugar Bowl of Olmedo (Valladolid) "Olmedo (Valladolid)"). Industrial crops in Spain give rise to powerful industries such as sugar and tobacco. (Sugar Beet Museum, Sugar Industry of Andalusia, Azucarera de Nuestra Señora de las Mercedes-) Azucarera Española") or Azucarera Ebro"), today simply "Azucarera"... "was born in 1903 and rapidly expanded: in 1920 it already had about 65 factories spread throughout Spain. Already in the year 2000, Azucarera Ebro Agrícolas merged with Puleva and the result was the creation of Ebro Foods".[8]​.

• - IRZ carburetor factory (Isidro Rodríguez Zarracina")) from the mills, Valladolid (beginning of the 20th century) -Joaquín Díaz Foundation, Industrial Heritage of Valladolid-.

• - Miranda de Ebro industrial estate.