Who paint the factory at horta de ebro?

You're likely referring to the "The Factory" by the Spanish painter Josep Torres-Garcia. This painting is a well-known work, and the factory depicted is thought to be the factory at Horta de Ebro, Catalonia, which was an industrial center in the early 20th century.

Torres-Garcia, a key figure in modern art, was fascinated by industry and technology, which is evident in many of his paintings. "The Factory" exemplifies this interest with its focus on the imposing presence of the factory building and the figures working within it.