Pantech Inc. () is a South Korean company that manufactures mobile phones. Established in 1991, its market is mainly domestic with partners in the United States, Japan, China, Europe and finally Vietnam. In 2012 Pantech was the second best-selling handset maker in South Korea, according to Gartner. In 2013 Samsung Electronics bought a 10% stake in Pantech. Pantech also partners with PCD for specialized phones. For the U.S. market, the company primarily manufactures phones for the two largest wireless carriers, AT&T and Verizon. Pantech launched an eco-friendly 3G messaging phone for AT&T as well as a 4G LTE Android handset for Verizon Wireless in 2012. Both smartphones have touchscreens and QWERTY keyboards that slide out. According to a report in July 2014 from CNET, Pantech is facing bankruptcy risk with a debt of $475 million. In October 2015, BusinessKorea said that Korean regulators have approved the acquisition by a domestic technology group led by Optis and Solid. In 2014, Only imported in country and exported in Vietnam. Released in South Korea Smartphones manufactured by Pantech and released in South Korea 3G Smartphone Pantech Curitel PH-S8000T Released in 2005, Pantech's Windows Mobile SmartPhone. Operating system is Windows Mobile 2003 Second Edition for Smart phone OS. Pantech SKY Sirius (IM-A600) Pantch SKY izar (IM-A630) Pantech SKY VEGA(IM-A650) Pantech SKY Mirach (IM-A690) Pantech SKY VEGA Xpress (IM-A710/A720) Pantech SKY VEGA X+ (IM-A725) Pantech SKY VEGA S (IM-A730) Pantech SKY Mirach A (IM-A740) Pantech SKY Vega Racer (IM-A760/A770/A775/A780/) Pantech SKY VEGA N°5 (IM-T100) LTE Smartphone Pantech SKY VEGA LTE (IM-A800) Pantech SKY VEGA LTE M (IM-A810) Pantech SKY VEGA LTE EX (IM-A820) Pantech SKY VEGA Racer 2 (IM-A830) Pantech SKY VEGA S5 (IM-A840) Pantech VEGA R3 (IM-A850) Pantech VEGA N°6 (IM-A860) Pantech VEGA Iron (IM-A870) Pantech VEGA LTE-A (IM-A880) Pantech launched Vega LTE-A in August 2013. Pantech VEGA Secret Note (IM-A890) Pantech Vega Secret Note was launched in South Korea in October 2013. The device records 200,000 units of sales in just 30 days after launched in South Korea. Pantech VEGA Secret Up (IM-A900) Pantech Vega Secret Up was launched in South Korea in December 2013. The device received the Android 4.4.2 KitKat update in April 2014. Pantech Vega Iron 2 (IM-A910) Pantech Vega Iron 2 was launched in South Korea in May 2014. The device runs Android 4.4.2 Kitkat Pantech VEGA Popup Note (IM-A920) Pantech VEGA Secret Note 2 (IM-A930) Pantech IM-A940K Pantech