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MicroCloud Hologram Inc, through its subsidiaries, is mainly engaged in holographic Technology. It includes Holographic solutions and Holographic technology services. The company also provides holographic digital twin technology services for customers and has built a holographic digital twin technology resource library. Geographically company is operating in single segment, China.
Smart Sand Inc. is a fully integrated frac sand company providing mine-to-well site proppant supply and logistics. It produces Northern White frac sand for enhanced hydrocarbon recovery in oil and gas wells. The company offers products like Smart System, SmartBelt, SmartDepot Silo, and SmartPath Loader. It is expanding into industrial markets, including glass, ceramics, and renewable energy, while its main revenue comes from sand sales and logistics.