What WESCO International, Inc. told the SEC could break it.

Trade-policy dynamics — reciprocal tariff frameworks, shifting tariff exclusions, country-of-origin rules, retaliatory duties and export controls on critical inputs — may worsen product shortages, extend supplier lead times and raise costs that WESCO may be unable to pass to customers, eroding margins.

“Trade policy dynamics, including reciprocal tariff frameworks, shifting tariff exclusions, country-of-origin rules, retaliatory duties and export controls affecting critical inputs, may exacerbate product shortages, extend supplier lead times and increase costs.”

WESCO's product sourcing is moderately concentrated — its ten largest suppliers accounted for ~32% of purchases in 2025 (no single supplier over 6%), and ~68% of purchases run through commercial agreements with 450+ preferred suppliers, so loss of key supplier relationships could disrupt product access.

“In 2025, our ten largest suppliers accounted for approximately 32% of our purchases. No single supplier accounted for more than 6% of our total purchases.”

Approximately 26% of WESCO's 2025 sales were from foreign subsidiaries denominated in non-USD currencies — chiefly the Canadian dollar, euro, British pound, Mexican peso and Australian dollar — exposing results to currency-rate fluctuations.

“In 2025, approximately 26% of our sales were from our foreign subsidiaries and are denominated in foreign currencies. Our exposure to currency rate fluctuations primarily relate to Canada (Canadian dollar), certain countries in the European Union (euro), the United Kingdom (British pound), Mexico (Mexican peso), and Australia (Australian dollar).”