EXHIBIT 10.37
CONFORMED COPY
DATE: 23RD DECEMBER, 1999
CROWN CASTLE UK LIMITED
AS BORROWER
CROWN CASTLE UK HOLDINGS LIMITED
AND
MILLENNIUM COMMUNICATIONS LIMITED
AS GUARANTORS
THE LENDERS LISTED IN SCHEDULE 1
CREDIT SUISSE FIRST BOSTON
AS AGENT
LOAN AMENDMENT AGREEMENT
SLAUGHTER AND MAY
35 BASINGHALL STREET
LONDON
EC2V 5DB
(AGB/HZM)
LOAN AMENDMENT AGREEMENT
DATE: 23rd December, 1999
PARTIES
1. CROWN CASTLE UK LIMITED (formerly known as Castle Transmission International Ltd.), a company
incorporated in England (number 3196207), of Warwick Technology Park, Gallows Hill, Heathcote Lane,
Warwick CV34 6TN, as borrower
2. CROWN CASTLE UK HOLDINGS LIMITED (formerly known as Castle Transmission Services
(Holdings) Ltd.), a company incorporated in England (number 3242381), of Warwick Technology Park,
Gallows Hill, Heathcote Lane, Warwick CV34 6TN and MILLENNIUM COMMUNICATIONS LIMITED, a
company incorporated in England (number 2903056), of Warwick Technology Park, Gallows Hill, Heathcote
Lane, Warwick CV34 6TN, as guarantors
3. CREDIT SUISSE FIRST BOSTON, for itself and as agent for the Lenders (the "Agent")
BACKGROUND
(A) On 28th February, 1997 the loan agreement was entered into between the Borrower, the Parent, certain
lenders, the Agent and others and under its terms the lenders agreed to provide term and revolving loan facilities
of (Pounds)162,500,000 to the Borrower. On 21st May, 1997 the parties to the loan agreement at that date
amended the loan agreement so that the lenders under it agreed to provide revolving loan facilities of (Pounds)
64,000,000 to the Borrower. These loan facilities are guaranteed by the Parent and secured by charges granted
by the Borrower and the Parent. With effect from 27th October, 1998 Millennium acceded to the loan agreement
LOAN AMENDMENT AGREEMENT
DATE: 23rd December, 1999
PARTIES
1. CROWN CASTLE UK LIMITED (formerly known as Castle Transmission International Ltd.), a company
incorporated in England (number 3196207)