The requirements for being a supplier of Wal-Mart Stores Inc. just keep getting tougher.

Freightos, an online freight marketplace, has acquired WebCargoNet, an air-cargo rate-management provider.

Having weathered numerous downturns in the past, major container lines might have thought they were immune from the laws of supply and demand. Now they know better.

After selling 2.5 million Galaxy Note 7 phablets in just two weeks, Samsung has issued a worldwide recall and temporary hold on sales because of battery overheating issues and danger of explosion. Since two-thirds of those batteries are manufactured by Samsung SDI, a supplier to many of the top brands of portable computing devices, this development could disrupt the supply chain for new devices for the rest of the year. Samsung SDI is one of the suppliers listed by Apple in their 2016 Supplier List, published in February.