Pricing rules require a floor price and disclosed allocation method, with stock exchange oversight before final allotment. Regulation 91F requires the eligible seller to announce a floor price or price band at least one day before opening an institutional placement programme; allocation/allotment may be made on a proportionate basis, price priority basis, or pursuant to criteria in the offer document, the chosen method must be disclosed, and the stock exchange must oversee allocation/allotment before final allotment.