Wal-Mart brought wider attention to how West Coast port congestion is hurting shippers, saying on Thursday that shipment delays are hurting its business and threaten its spring and Easter inventory. The company said it’s taking steps to reduce the impact of shipment delays, including moving more imports through Gulf and East Coast ports, according to MarketWatch. Wal-Mart CEO Doug McMillon told investors that the retailers would make “further adjustments if the issue persists.”.

Wal-Mart was far from the only shipper in recent weeks to bemoan how port congestion — exacerbated by alleged slowdown tactics of the International Longshore and Warehouse Union — is crimping its business. The ILWU, which is negotiating a contract with waterfront employers, denies accusations from the Pacific Maritime Association, representing marine terminals and carriers, that it’s slowing down productivity.

Kaiser Aluminum on Wednesday said congestion hampered its exports and forced the producer to reroute shipments in the fourth quarter, according to a transcript from Seeking Alpha. And KapStone Paper and Packaging said congestion cost the company $3 million in same period, as it was forced to pay higher transportation and handling costs, and experienced shipment delays.

“The ports slowed down, which kind of hurt us in the last quarter as exports of apples became very difficult for our customers, and they had a lot of spoilage as well, as a result of that,” said Roger Stone, chairman and CEO.

West Coast port congestion has impacted shippers that don’t ship through the ports, too. Pilgrim’s Pride, a poultry exporter, on Feb. 12 said it’s having a harder time securing outbound space on carriers at U.S. East Coast ports because other shippers are shifting goods normally shipped through the West Coast to the East Coast.

Terex, a manufacturer of global equipment, has seen import and export delays through Washington state ports, forcing it to ship some components via costlier air services and reroute some cargo to other ports, Matthew Fearson, president of Terex Aerial Work Platforms, told investors during a fourth-quarter earnings call on Feb. 18.

“The visibility on when we're going to receive things has always been kind of — it's been hand-to-mouth since about the middle of November,” he said.

The congestion has also hurt companies that one wouldn't normally think would be affected by it. Pebblebrook Hotel Trust said Port of Los Angeles congestion has slowed down imports of furniture, fixtures and equipment, Jon Bortz, chairman, president and CEO of the real estate investment trust, told investors on Wednesday, according to a Seeking Alpha transcript.