except for cause("...Pharmakon's RD&M division has never discharged a worker except for cause and should adhere as closely as possible to that policy by terminating individuals solely based on merit..." (Smith and Roberson's Business Law 15th ed) vatnik)
unreasonably withheld or delayed(subject to written approval of the Supplier, which shall not be unreasonably withheld or delayed – на основании разрешения Поставщика в письменной форме, в котором не будет отказано и которое не будет задержано без уважительной причины ART Vancouver)