French industrial gases company Air Liquide SA (<a href="https://live.euronext.com/en/product/equities/fr0000120073-xpar" target="_blank">EPA:AI</a>) on Friday said it will invest EUR 50 million (USD 52.9m) in a hydrogen supply chain to refueling stations along the Seine Axis, and announced a hydrogen supply contract with mobility company HysetCo.