Created in 1979 by the Catholic Mission in  Niger, CTK,  Kalmharo is a technical and professional training Center.
The word KALMHARO is a Zarma language which means: Kalma = Clay and Haro = water. This name takes its meaning from the location of the
center. The center is located in the industrial area of Niamey next to a pond (swamp) which contained a clay of good quality  used by the people for their buildings.
Since its inception the Technical Center of Kalmharo has had several directors.
The first director and founder of this center was Father Michel,
after his death in 1981 Pierre Antoine of Catholic Mission in Niamey seconded him.
In 1982, the Mission gave the center's management to the government  of Niger Republic  which
appointed Mr. SALOU YAROH  to assume the post of Director.
In 1986, Mr. MOUMOUNI SAIDOU becomes the director until 1988 when he was succeeded by Mr LIHIDA BAYAWA.
After his retirement in 2000, Mr. Lihida Bayawa  was replaced by Mr Binia ISSOUFOU;
In 2007 he was  called to other duties and left the direction
M. KADA ATTO was assumed the duty of Directoro from 2007 to april 2010.
The Actual Director is ARZIKA ASSOUMANE.
Since its inception, the Center  has been under supervision of  several ministries namely the Ministry of Education, the Ministry of
Public Service, the Ministry of Higher Education and Research, the Ministry of Training and professional insertion of youth , and finally the Ministry Professional and Technical training and Literacy, current ministry.