Major Japanese snack manufacturer Calbee says it will temporarily change the packaging of some of its popular products to black and white versions. The company cites material supply disruptions due to the situation in the Middle East.

The company announced on Tuesday that packaging of 14 products, including its flagship “Potato Chips” and “Kappa Ebisen,” will go monochrome from May 25. The potato chips carry the printed explanation “package to save oil-related materials.”

Calbee says the change is due to instability in the procurement of printing ink and other materials amid tensions in the Middle East. The firm hopes to ensure a stable supply of its products by simplifying their packaging. It said it will continue to respond flexibly and promptly to changes in its operating environment, including geopolitical risks.

Prior to the announcement, company officials visited the agriculture ministry to explain the decision to change the packaging.

The ministry reportedly told them it will respond to consultation on the procurement of petroleum products, together with the government offices for food industry businesses.

Meanwhile, Itoham Yonekyu Holdings, which manufactures processed meat products, is also said to be considering simplifying its packaging.

A group of businesses that make food packages and printing ink says its members are starting to limit supply or push back delivery dates amid surging costs of raw materials.