On the scientific and industrial base of the updated Cryogenmash and with its direct participation in the period of September 28 – October 2, 2015 in conjunction with the Association «SIGMA» there was held an international seminar on Current State and Development Trends of Oxygen and Cryogenic Engineering. It coincided with the significant event — commissioning of a multiproduct production complex and building new research laboratories by Cryogenmash. The seminar brought together more than 100 experts from ten countries. It was attended by manufacturers and consumers of diversified cryogenic equipment, including air separation plants. Companies involved in the gas business in the market of industrial gases showed interest in the seminar. Thirty reports analyzing characteristics of the current state and development trends of the scientific research and design-engineering work on the areas of concern of the seminar were presented. Based on the study of the presentations, we can make conclusions on a number of promising results, further improvement of cryogenic systems, for example, for the production of liquefied natural gas and air separation products.