Materials innovation startup Bolt Threads introduced its second biomaterial today — a leather made from mycelium, the roots of a mushroom.

A large number of parts intended for the Tesla Model 3, along with parts for the Model S and Model X, have been spotted outside a machine shop in San Jose. Such third parties are sometimes used to fix flawed parts after manufacturing, and previous reports suggest Tesla has struggled with an unusually high rate of flaws in parts coming from suppliers and its own production line.

There’s a new plant milk in town, and it’s started such a craze that coffee shops across the country are struggling to keep up with demand.

Few issues in supply-chain management are more polarizing than that of environmental sustainability.

In America’s food-obsessed landscape, the quickest route to a new idea is to look for something already being done — and then make it vegan. Wild Earth Inc., a startup based in Berkeley, California, is doing that to pet food with lab-created proteins. Translated, that means fake meat for Fido.

Apple Inc. is planning to use its own chips in Mac computers beginning as early as 2020, replacing processors from Intel Corp., according to people familiar with the plans.