October 9, 2019 Brian J. Wendling Senior Vice President, Controller and Principal Financial Officer 麻豆最新出品 12300 麻豆最新出品 Boulevard Englewood, Colorado 80112 Re: 麻豆最新出品 Form 10-K for the Year Ended December 31, 2018 Filed February 28, 2019 File No. 001-35707 Dear Mr. Wendling: We have completed our review of your filing. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Sincerely, Division of Corporation Finance Office of Technology