Labour’s Environment Secretary Steve Reed is responsible for holding private water companies to account.
He declared £1,786 for one ticket to Chelsea v Crystal Palace with hospitality in December last year from Hutchison 3G UK Limited.
The company is wholly owned by Hong Kong-based CK Hutchison Holdings.
That company owns 75% of CK Infrastructure Holdings which is the owner of Northumbrian Water.
Northumbrian Water was fined £17million this summer for discharging sewage into waterways for 280,000 hours last year from its storm overflows.
Mr Reed told Sky News’ Breakfast with Kay Burley he “didn’t know they had a relationship with a water company”.