Question: What airline is headquarted in Vientiane and opened in 2015?

Context paragraphs:
Thanaleng Railway Station: Thanaleng Railway Station, also known as Dongphosy Station ("Ban Dong Phosy" in Lao), is a railway station in Dongphosy village, Hadxayfong district, Vientiane Prefecture, Laos.  It is located 20 km east of the Lao capital city of Vientiane and 4 km north of the border between Laos and Thailand along the Mekong River.  The station opened on March 5, 2009, becoming part of the first international railway link serving Laos.  Originally intended for use as a passenger station, Lao officials have stated their intention to convert it to a rail freight terminal to provide a low-cost alternative to road freight, the main mode of transport for goods entering Thailand.  The station provides a connection between Vientiane and the capital cities of three other ASEAN nations (Thailand, Malaysia and Singapore), and several major Southeast Asian ports.

Lao Airlines: Lao Airlines State Enterprise is the national airline of Laos, headquartered in Vientiane.  It operates domestic as well as international services to countries such as Cambodia, China, Thailand, Vietnam, Singapore, and Korea.  Its main operating base is Wattay International Airport in Vientiane.  It is subordinate to the Ministry of Public Works and Transport.

Lao Central Airlines: Lao Central Airlines Public Company, operating as Lao Central Airlines, was an airline in Laos with its head office in Wattayyaithong Village, Sikhottabong District, Vientiane.  The airline was founded in 2010, and ceased operations in 2014.

Italthai Industrial Group: Italthai Industrial Company Limited (commonly known as ITALTHAI) is a company of the ITALTHAI Group.  The group is a conglomerate with more than 5,000 employees in six countries.  Italthai Industrial Company Limited is one of the major distributors and providers of after-sales service for construction and industrial equipment in Thailand and neighboring countries.  The company has over than 10 branches in Thailand as well as a newly opened Vientiane office.

Vientiane Province: Vientiane Province (also known as rural Vientiane) (Lao ແຂວງວຽງຈັນ) is a province of Laos, located in the northwest of the country.  As of 2015 the province had a total population of 419,090 people.  Vientiane Province is a large province, covering an area of 15927 km2 with 10 districts in mid north-western Laos.  The province borders Luang Prabang Province to the north, Xiangkhouang Province to the northeast, Bolikhamxai Province to the east, Vientiane Prefecture and Thailand to the south, and Xaignabouli Province to the west.  The principal towns are Vang Vieng and Muang Phôn-Hông.  Several kilometres to the south of Vang Vieng is one of Laos's largest lakes, Nam Ngum.  Much of this area, particularly the forests of the southern part, are under the Phou Khao Khouay National Bio-Diversity Conservation Area.  The principal rivers flowing through the province are the Nam Song River, Nam Ngum River and the Nam Lik River.

Indonesia–Laos relations: Indonesia–Laos relations are foreign bilateral relations between Indonesia and Laos.  diplomatic relations were established in 1957.  Indonesia have an embassy in Vientiane, while Laos have an embassy in Jakarta.  Indonesia supported and welcomed Laos membership to the Association of Southeast Asian Nations (ASEAN) on 23 July 1997.  Laos and Indonesia agreed to enhance relations to focus on exploring the potential of both nations to cooperate on trade and investment.  The two nations expressed a desire to reach further agreements relating to security, tourism, sport, air transport and education.  The two sides will also work together in cooperation with other ASEAN nations to ensure the ASEAN Community is established in 2015.

Attapeu International Airport: Attapeu International Airport (IATA: AOU, ICAO: VLAP) is an airport that serves Attapeu in Laos.  It opened in May 2015 following two years of construction.  Lao Airlines provided flights from Vientiane via Pakse three times a week; however, it stopped them in October 2016 because of low passenger demand.  The airport is located in Attapeu Province, which borders Vietnam and has seen greater commercial activity; however, it does not receive much tourism.

Lao Skyway: Lao Skyway, formerly known as Lao Air (Lao: ລາວເດີນອາກາດ ), is a private airline with its headquarters at Wattay Airport in Vientiane, Laos.  It operates scheduled and charter services to airports in the country not served by Lao Airlines.

Vientiane Rescue: Vientiane Rescue is a volunteer-run rescue service in Vientiane, Laos.  Responding to over 5,760 road accidents annually (2015 figures), Vientiane Rescue is the largest such service in the country.  It is made up of over 200 volunteers, eight ambulances, a fire-fighting unit, a scuba rescue team as well as hydraulic rescue and excavation teams.

RKW Group: The RKW Group is a German manufacturer of plastic films headquarted in Frankenthal.  As of 2011 it was one of the top two plastic films companies in Europe and sold products in five markets: industrial films, industrial packaging, consumer packaging, agricultural films and nets, and hygiene and medical films.  It had factories in Europe, Vietnam, Egypt, and the US.  In 2002, RKW took over four locations of former BP Plastec.  In 2009, the company founded the first production facility on the African continent in Egypt.  In 2015, it opened a plant in Guangzhou, China.  The same year, RKW acquired plastic film producer Hyplast NV in Hoogstraten, Belgium.  In the fiscal year 2016, RKW generated total sales of EUR 902 million, and about 3,000 employees processed 380,000 tonnes of plastic materials at more than 20 locations around the world.  RKW was founded in 1957 by Jakob Müller as Rheinische Kunststoffwerke GmbH in , Germany.  Together with the affiliated company Renolit SE, a manufacturer of PVC and PE films, RKW is owned by the founder’s family.

Supporting paragraphs: Attapeu International Airport Lao Airlines
Answer: Lao Airlines