ZIM Integrated Shipping Services Ltd. (ZIM) shares are down 3.28% to $21.50 as of 11:34 am on Tuesday, compared to the previous close of $22.23 on November 25th. The decline follows news that ZIM is facing a potential investigation by the Federal Maritime Commission (FMC) over allegations of breaching the US Shipping Act. The complaint, filed by non-vessel operating common carrier Baylink, accuses ZIM of improperly delivering a container to Koyote Trucking without authorization, leading to $137,000 in detention fees. Baylink claims it was unaware of the container's status for months and that ZIM failed to provide necessary documentation to resolve the issue.