In April 2015, Sunano Group Limited. and the Bulgarian company ISB (Innovative Solutions Bulgaria Ltd.) formally reached a cooperation agreement. The two parties will make use of their respective advantages to jointly provide atomic force microscopes with high cost performance to all Chinese atomic force microscope users. Probes and related calibration services.

ISB is located in Sofia, Bulgaria. It is affiliated to NanoWorld Group, the world's largest manufacturer of scanning probe microscope probes/consumables. It has long provided AFM probes of BudgetSensors and other brands to atomic force microscope users around the world. The main products and services are: semi-contact AFM probes, force-adjustable AFM probes, contact AFM probes, conductive AFM probes, magnetic AFM probes, AFM calibration standards and services, etc.
The industrial structure of Juna Group includes new energy business, communication business, modern trade business, micro-nano business, scientific research and testing business, investment management business, etc. Juna Scientific Instrument Division is mainly committed to providing scientific research and industrial users with the world's leading scientific instruments and accessories, the most advanced testing and analysis tools and solutions, and has become a high-quality supplier of many Fortune 500 companies. The subsidiary Taizhou Graphene Research and Testing Platform is the first graphene research and testing platform in the country, and is also the secretariat of the Standardization Committee of the Graphene Alliance. Material structure characterization and application product performance testing and standard services, including AFM testing, etc.