exhibit 10. 5 subscription materials amphastar cayman a cayman islands limited liability company these subscription materials ( the “ subscription materials ” ) set out representations, warranties and undertakings required to be made in connection with an investment in amphastar cayman, a cayman islands limited liability company ( the “ company ” ). any investment in the company may be approved or disapproved in the reasonable discretion of jason shandell and william peters, as the initial managers of the company ( the “ managers ” ). to complete these subscription materials, please complete the steps as follows : 1. investor undertakings. carefully review the “ investor undertakings ” provided as exhibit a. 2. investor status. mark where appropriate to confirm status as an “ accredited investor ” on exhibit b. 3. tax form. complete and return an irs form w - 9, available at : https : / / www. irs. gov / pub / irs - pdf / fw9. pdf 4. complete, sign and return. complete all “ investor ” information in these subscription materials, sign the signature page hereto and return, completed and signed, to the company. exhibit 10. 5 subscription materials amphastar cayman a cayman islands limited liability company these subscription materials ( the “ subscription materials ” ) set out representations, warranties and undertakings required to be made in connection with an investment in amphastar cayman, a cayman islands limited liability company ( the “ company ” ). any investment in the company may be approved or disapproved in the reasonable discretion of jason shandell and william peters, as the initial managers of the company ( the “ managers ” ). to complete these subscription materials, please complete the steps as follows : 1. investor undertakings. carefully review the “ investor undertakings ” provided as exhibit a. 1. investor undertakings. carefully review the “ investor undertakings ” provided as exhibit a. 1. 1. investor undertakings. carefully review the “ investor undertakings ” provided as exhibit a. 2. investor status. mark where appropriate to confirm status as an “ accredited investor ” on exhibit b. 2. investor status. mark where appropriate to confirm status as an “ accredited investor ” on exhibit b. 2. 2. investor status. mark where appropriate to confirm status as an “ accredited investor ” on exhibit b. 3. tax form. complete and return an irs form w - 9, available at : https : / / www. irs. gov / pub