José J. Chediack S.A.I.C.A. (Chediack) is an Argentine construction and concessions company founded in 1947. Owned by Argentine businessman Juan Chediack, the company has offices in Buenos Aires, it has been operating in Argentina since 1947. Among its completed projects are the 20km Ezeiza-Cañuelas highway in Buenos Aires; national route 145 connecting Mendoza, Argentina with Chile; the 523mt bridge over the Costaline river in Santa Fe province; and the Luján-Santa Rosa and Luján-Laboulaye stretches of national 5 and 7 toll roads. The company is part of the Teyma-Lavigne-Chediack consortium which is building the new port terminal of Capurro in the bay of Montevideo, Uruguay. It is also in a consortium with Argentine companies UCSA and Bill Walter Mario S.R.L. involved in the construction of the second phase of the GNEA northeast natural gas pipeline in Chaco, Argentina.