USLM vs STAA Comparison

United States Lime & Minerals Inc is engaged in the business of manufacturing lime and limestone products including PLS, quicklime, hydrated lime, and lime slurry. It supplies its products predominantly to the construction (including highway, road, and building contractors), industrial (including paper and glass manufacturers), environmental (including municipal sanitation and water treatment facilities and flue gas treatment processes), metals (including steel producers), oil and gas services, roof shingle manufacturers and agriculture (including poultry and cattle feed producers) industries. The company operates through its Lime and Limestone Operations segment.

Staar Surgical Co is a manufacturer of lenses. It designs, develops, manufactures, and sells implantable lenses for the eye and delivery systems used to deliver the lenses into the eye. The company also makes lenses that are used in surgery to treat cataracts. The company offers two types of products: Implantable Collamer lenses (ICL) and intraocular lens (IOL). The ICLs are used in refractive surgery and IOLs are used in cataract surgery. The majority of sales are generated from the ophthalmic surgical product segment.