Core Viewpoint - The successful completion of the industrial application test for the "1-butene/1-hexene flexible switching technology" by the Yulin Company of China Petroleum Group marks a significant technological breakthrough in the field of high-end new materials production [1]. Group 1 - The expert group conducted a thorough review of technical documents, including the "Industrial Test Summary Report," "Startup Plan," "Calibration Report," and full-process operation records during the on-site verification [1]. - Since the successful startup of the butene operation in September 2021, the Yulin Company has effectively planned and implemented strategies, achieving a smooth transition to hexene operation by August 2022 [1]. - The facility is now capable of consistently producing high-quality 1-butene and 1-hexene products, having completed the "72-hour continuous calibration" tasks under both butene and hexene operations in June 2022 and July 2025, respectively [1]. Group 2 - The expert group unanimously agreed that the project team adhered to the requirements of the project task book, with sufficient physical workload and reliable original data, meeting all technical and economic assessment indicators [1]. - The expert group highly recognized the efforts made by the Yulin Company in the technology development process [1]. - The successful verification not only validates the Yulin Company's capabilities in flexible production technology for high-end new materials but also lays a solid foundation for further extending the industrial chain and enhancing product market competitiveness [1].