materials shortage; lack of materials
Refers to a shortage or insufficiency of physical materials, supplies, or ingredients needed for production, construction, or cooking.
Construction is delayed due to a materials shortage.
We can't make this dish today because we're short on ingredients.
人手不足 means 'labor shortage' or 'short-staffed', focusing on people, while 材料不足 is about materials or ingredients.
品不足 is a more general 'shortage of goods' or 'supply shortage', whereas 材料不足 specifically refers to raw materials or ingredients.
Compound of 材料 (ざいりょう, 'materials') and 不足 (ぶそく, 'shortage').