Founded in 1989 as the Spanish (country) subsidiary of Emecé in Argentina; In 2000, Emecé Argentina was sold to Grupo Planeta and the directors kept Emecé Spain (and the right to Harry Potter) and renamed the company Ediciones Salamandra
This book is, I believe, a bootleg because of the poor quality reproduction of the cover. Interior still appears to be printed though so it's a little hard to tell.