IOSP innospec inc. NASDAQ Major Chemicals LMB limbach holdings, inc. NASDAQ Engineering & Construction LNDC landec corporation NASDAQ Major Chemicals MAG mag silver corporation ordinary shares NASDAQ Precious Metals MEOH methanex corporation NASDAQ Major Chemicals MERC mercer international inc. NASDAQ Paper MTRX matrix service company NASDAQ Engineering & Construction MYRG myr group, inc. NASDAQ Water Supply NWPX nwpx infrastructure, inc. NASDAQ Steel/Iron Ore OCC optical cable corporation NASDAQ Telecommunications Equipment PAAS pan american silver corp. NASDAQ Precious Metals PATK patrick industries, inc. NASDAQ Forest Products PESI perma-fix environmental services, inc. NASDAQ Environmental Services PLPC preformed line products company NASDAQ Water Supply PRIM primoris services corporation NASDAQ Water Supply RGLD royal gold, inc. NASDAQ Precious Metals RKDA arcadia biosciences, inc. NASDAQ Agricultural Chemicals SNES senestech, inc. NASDAQ Agricultural Chemicals SSRM ssr mining inc. NASDAQ Precious Metals STLD steel dynamics, inc. NASDAQ Steel/Iron Ore STRL sterling construction company inc NASDAQ Military/Government/Technical TANH tantech holdings ltd. - common shares NASDAQ Major Chemicals UFPI ufp industries, inc. NASDAQ Forest Products USAP universal stainless & alloy products, inc. NASDAQ Steel/Iron Ore USLM united states lime & minerals, inc. NASDAQ Mining & Quarrying of Nonmetallic Minerals (No Fuels) VERU veru inc. NASDAQ Specialty Chemicals WDFC wd-40 company NASDAQ Major Chemicals WWR westwater resources, inc. NASDAQ Precious Metals YTEN yield10 biscience inc new NASDAQ Containers/Packaging ZEUS olympic steel, inc. NASDAQ Metal Fabrications AEM agnico eagle mines limited NYSE Precious Metals AES the aes corporation NYSE Electric Utilities: Central AG first majestic silver corp. ordinary shares (canada) NYSE Precious Metals AGI alamos gold inc. class a common shares NYSE Precious Metals AIN albany international corporation NYSE Textiles ALB albemarle corporation NYSE Major Chemicals AMRC ameresco, inc. class a NYSE Engineering & Construction APD air products and chemicals, inc. NYSE Major Chemicals ASIX advansix inc. NYSE Major Chemicals ATI allegheny technologies incorporated NYSE Steel/Iron Ore AU anglogold ashanti limited NYSE Precious Metals AVD american vanguard corporation ($0.10 par value) NYSE Agricultural Chemicals AXTA axalta coating systems ltd. common shares NYSE Paints/Coatings BAK braskem sa adr NYSE Major Chemicals BBU brookfield business partners l.p. limited partnership units NYSE Engineering & Construction BDC belden inc NYSE Telecommunications Equipment BGC bgc group, inc. - class a NYSE Telecommunications Equipment BHP bhp group limited american depositary shares (each representing two ordinary shares) NYSE Precious Metals BIOA bioage labs, inc. NYSE Major Chemicals BVN buenaventura mining company inc. NYSE Precious Metals