Investors | Careers NCS Multistage Patent Information The following products offered for sale by NCS Multistage are covered by one or more claims of patents and/or patents pending in the U.S. This webpage provides virtual patent marking notice under 35 U.S.C. §287(a). Click patent number to view patent. PRODUCT PATENT(S) Airlock® casing buoyancy system US 9,593,542 US 10,465,445 US 10,883,314 US 10,883,315 Further applications pending INNOVUS™ Convertible Frac Sleeve with TORIUS™ Regulator US 8,794,331 US 9,982,512 US 10,344,561 Further applications pending Terrus™ Injection Sleeve with Torius™ Flow Regulator Patent pending Last updated January 5, 2021 Airlock®, Innovus™, Terrus™, and Torius™ are trademarks of NCS Multistage, LLC. © Copyright NCS Multistage

Investors | Careers PROPPEX™ FRAC SLEEVES This proppant exclusion sleeve, which currently is being developed for conventional reservoirs in the international market, prevents sand from flowing into the wellbore after the stimulation resulting from the fracture. Normal, pin- point fracture operations are performed with this technology. However, as soon as the simulation operations are completed, the sleeve is shifted into a “screen” mode in which a screen is pulled across the frac ports. The inflow of sand from the production operations is prevented from entering the wellbore. WE WOULD LOVE TO HEAR FROM YOU. Name* First Last © Copyright NCS Multistage

Investors | Careers TERRUS™ RETROFIT WATER-INJECTION SYSTEM The Terrus™ injection system provides cost-effective, retrofit wellbore segmentation and injection regulation to improve the efficiency of the waterflood sweep. The system combines regulated injection sleeves with hydraulically actuated zone-isolation packers deployed on production tubing for installation in existing production casing. Unlike bullhead injection or conventional injection-control devices (ICDs), the Terrus™ system allows individual zone injection to be adjusted after installation using wireline-deployed or coiled tubing-deployed shifting tools. Benefits Enables individual zone injectivity and injection profile management to balance flowrates along the wellbore. Reduces efficiency loss due to short-circuit break-throughs and thief zones. n Mitigates plugging Features The Terrus system is deployed on production tubing inside existing production casing. Inner sleeve is positioned using a flow-activated shifting tool deployed on coiled tubing or wireline. Download PDF Contact NCS 1 Sliding Inner Barrel 2 Dual Torius™ Flow Regulators 3 Dual Torius™ Flow Regulators 4 Shifting tool profile 5 Outer view of the Torius™ flow regulator with particle screen Up position (regulator A) Down position (regulator B) Dual selectable Torius flow regulators Water injection rates for standard Torius™ flow regulators WE WOULD LOVE TO HEAR FROM YOU. Name* First Last © Copyright NCS Multistage