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



	December 31,
	2014			2013
	(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 (1)	$	—		$	—
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
Senior subordinated notes:
6.0% Convertible senior subordinated notes, due April 2014 (2)	—			56,350
Debt of subsidiaries:
Amkor Technology Korea, Inc.:
$41 million revolving credit facility, foreign currency funding-linked base rate plus 2.00%, due June 2016 (3)	—			—
Term loan, LIBOR plus 3.70%, due June 2016 (4)	70,000			70,000
Term loan, foreign currency funding-linked base rate plus 2.00%, due March 2017 (5)	80,000			—
Term loan, LIBOR plus 3.70%, due July 2017 (6)	30,000			90,000
Term loan, foreign currency funding-linked base rate plus 1.75%, due September 2017 (7)	5,000			10,000
Term loan, LIBOR plus 3.70%, due December 2019	70,000			70,000
Term loan, foreign currency funding-linked base rate plus 2.30%, due March 2015	—			80,000
Other:
Revolving credit facility, TAIFX plus a bank-determined spread, due April 2015 (Taiwan) (8)	—			—
	1,525,000			1,646,350
Add: Unamortized premium	5,824			6,390
Less: Short-term borrowings and current portion of long-term debt	(5,000		)	(61,350		)
Long-term debt (including related party)	$	1,525,824		$	1,591,390

(1)

In December 2014, we amended the senior secured revolving credit facility to increase the facility amount from $150.0 million to $200.0 million and extend its term to December 2019. The facility has a letter of credit sub-limit of $25.0 million. As amended, interest is charged under the facility at a floating rate based on the base rate in effect from time to time plus the applicable margins, which range from 0.00% to 0.50% for base rate revolving loans, or LIBOR plus 1.25% to 1.75% for LIBOR revolving loans. The borrowing base for the revolving credit facility is based on the amount of our eligible accounts receivable, which exceeded $200.0 million as of December 31, 2014.

(2)

In April 2009, we issued $250.0 million of our 6.0% Convertible senior subordinated notes (the “2014 Notes”). The 2014 Notes were convertible at any time prior to the maturity date into our common stock at a price of approximately $3.02 per share, subject to adjustment. In June 2013, we completed a tender offer for the 2014 Notes and exchanged $193.7 million of the 2014 Notes for an aggregate 64.0 million shares of our common stock and a cash payment of $11.6 million. In April 2014, holders of the 2014 Notes converted the remaining outstanding principal amount of $56.4 million into 18.6 million shares of our common stock.

(3)

In June 2012, we entered into a $41.0 million revolving credit facility with a Korean Bank with a term of 12 months. The loan is collateralized with substantially all the land, factories and equipment at our facilities in Korea. In June 2013, the facility was amended by extending the term by three years to June 2016. Principal is payable upon maturity. As of December 31, 2014, $41.0 million was available to be borrowed for general working capital purposes.

(4)

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. The loan is collateralized by substantially all the land, factories and equipment located at our facilities in Korea. Principal is payable at maturity. As of December 31, 2014, $80.0 million was available to be borrowed.

(5)

In March 2014, we entered into a term loan agreement with a Korean bank pursuant to which we borrowed $80.0 million. The loan is collateralized by substantially all the land, factories and equipment located at our facilities in Korea. Principal is payable at maturity. Proceeds were used to prepay our term loan due March 2015. In January 2015, the term loan was amended and now bears interest at 1.80%.


(6)	In June 2012, we entered into a term loan agreement for five years with a Korean bank collateralized by substantially all the land, factories and equipment located at our facilities in Korea. Principal is payable at maturity. In April 2014, we prepaid $60.0 million of the outstanding balance of the term loan. In October 2014, the term loan was amended and now bears interest at LIBOR plus 3.70%.

(7)

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. The loan is collateralized by substantially all the land, factories and equipment located at our facilities in Korea. Principal is payable in quarterly installments of $5.0 million starting in December 2014, with the remaining balance due at maturity. At December 31, 2014, $140.0 million was available to be borrowed for capital expenditures.

(8)

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 December 31, 2014, $19.0 million was available to be drawn for general corporate purposes and capital expenditures.