Note 6 - Long-term debt:

	December 31,		March 31,
	2017		2018
	(In millions)
Kronos International, Inc. 3.75% Senior Secured Notes	$	471.1	$	484.9
Other		3.4		3.2
Total debt		474.5		488.1
Less current maturities		.7		.7
Total long-term debt	$	473.8	$	487.4

Senior Secured Notes - At March 31, 2018, the carrying value of our 3.75% Senior Secured Notes due September 15, 2025 (€400 million aggregate principal amount outstanding) is stated net of unamortized debt issuance costs of $7.5 million.

Revolving credit facilities – During the first three months of 2018, we had no borrowings or repayments under our North American revolving credit facility and our European revolving credit facility. At March 31, 2018, approximately $115.2 million was available for additional borrowing under the North American revolving credit facility. Our European revolving credit facility requires the maintenance of certain financial ratios, and one of such requirements is based on the ratio of net debt to last twelve months earnings before income tax, interest, depreciation and amortization expense (“EBITDA”) of the borrowers. Based upon the borrowers’ last twelve months EBITDA as of March 31, 2018 and the net debt to EBITDA financial test, the full €90 million amount of the credit facility ($110.8 million) is available for borrowing at March 31, 2018.

Other - We are in compliance with all of our debt covenants at March 31, 2018.