Following is a summary of short-term borrowings and long-term debt:



	March 31, 2015			December 31, 2014
	(In thousands)
Debt of Amkor Technology, Inc.:
Senior secured credit facilities:
$200 million revolving credit facility, LIBOR plus 1.25%-1.75%, due December 2019	$	—		$	—
Senior notes:
7.375% Senior notes, due May 2018	345,000			345,000
6.625% Senior notes, due June 2021, $75 million related party	400,000			400,000
6.375% Senior notes, due October 2022	525,000			525,000
Debt of subsidiaries:
Amkor Technology Korea, Inc.:
$41 million revolving credit facility, foreign currency funding-linked base rate plus 1.60%, due June 2016 (1) (6)	30,000			—
Term loan, LIBOR plus 3.70%, due June 2016 (2) (6)	70,000			70,000
Term loan, foreign currency funding-linked base rate plus 1.80%, due March 2017 (3) (6)	80,000			80,000
Term loan, LIBOR plus 3.70%, due July 2017 (1) (6)	—			30,000
Term loan, foreign currency funding-linked base rate plus 1.75%, due September 2017 (4) (6)	—			5,000
Term loan, LIBOR plus 3.70%, due December 2019 (5) (6)	70,000			70,000
Other:
Revolving credit facility, TAIFX plus a bank-determined spread, due April 2015 (Taiwan) (7)	—			—
	1,520,000			1,525,000
Add: Unamortized premium	5,677			5,824
Less: Short-term borrowings and current portion of long-term debt	(30,000		)	(5,000		)
Long-term debt (including related party)	$	1,495,677		$	1,525,824

(1)

In June 2012, we entered into a $41.0 million revolving credit facility with a Korean Bank. Principal is payable at maturity. In February 2015, the facility was amended to lower the interest rate. In February 2015, we drew $30.0 million and used the proceeds to prepay our term loan due July 2017. In April 2015, the outstanding balance was repaid. Interest is due monthly, at a foreign currency funding-linked base rate plus 1.60% (3.05% as of March 31, 2015). As of March 31, 2015, $11.0 million was available to be borrowed for general working capital purposes.

(2)

In April 2013, we entered into a term loan agreement with a Korean bank pursuant to which we may borrow up to $150.0 million through April 2016 for general working capital purposes and the repayment of inter-company debt. Principal is payable at maturity. Interest is due quarterly, at a rate of LIBOR plus 3.70% (3.97% as of March 31, 2015). As of March 31, 2015, $80.0 million was available to be borrowed.


(3)	In March 2014, we entered into a term loan agreement with a Korean bank pursuant to which we borrowed $80.0 million. Principal is payable at maturity. In January 2015, the term loan was amended to lower the interest rate. Interest is due monthly, at a foreign currency funding-linked base rate plus 1.80% (3.08% as of March 31, 2015).

(4)

In March 2013, we entered into a loan agreement with a Korean bank pursuant to which we may borrow up to $150.0 million through September 2017. Principal is payable in quarterly installments of $5.0 million starting in December 2014, with the remaining balance due at maturity. Interest is due quarterly, at a foreign currency funding-linked base rate plus 1.75% (3.20% as of March 31, 2015). At March 31, 2015, $140.0 million was available to be borrowed for capital expenditures.


(5)	In November 2012, we entered into a loan agreement with a Korean bank pursuant to which we could borrow up to $100.0 million through March 2014. Principal is payable upon maturity. Interest is payable quarterly in arrears, at LIBOR plus 3.70% (3.94% as of March 31, 2015). In April 2015, the term loan was amended and now bears interest at LIBOR plus 2.70%.


(6)	The loans in Korea are collateralized by substantially all the land, factories and equipment located at our facilities in Korea.

(7)

In September 2012, Amkor Technology Taiwan Ltd, a subsidiary in Taiwan, entered into a revolving credit facility. Availability under the revolving credit facility was originally $44.0 million and subsequent availability steps down $5.0 million every six months from the original available balance. Principal is payable at maturity. As of March 31, 2015, $19.0 million was available to be drawn for general corporate purposes and capital expenditures.

The