The agreement was signed today making it official.  Choboni Agro Farma, the manufacturer of Greek yogurt, is expanding to the Twin Falls area from it's eastern seaboard roots.  The official announcement was made this morning as local officials along with state officials and Gov. Butch Otter looked on.  Construction will begin soon on the facility located to the east of Twin Falls along Hankins Road.  The facility will be the western distribution center for the product.  The plant will eventually employ around 400 workers when it's completed.