Transparency: That all transactions can be viewed by anyone being that it is a public ledger. Which leads to increased trust.
Security: That there is a network of nodes and miners ensuring that the system is accurate and secure from hacks and corruption as in a centralized authority database.
Improved traceability: It allows you to know where the product has gone and it helps give you a reference that said information was given correctly.
Increased efficiency and speed: There is only a single ledger in blockchain which eliminates the need for a middle man and keeps it a peer to peer style network. That increases speeds and cuts the cost down in result.
Reduced cost: Cutting out the middle man saves some financial costs being that they are not needed as data on the blockchain is accurate and can be non-reversed.