Question: What group operates the store that is served by the parking lot adjacent to Fairfield Avenue Station?

Context paragraphs:
Green parking lot: Green parking lots are a form of parking lot designed to be environmentally more sustainable.  Both the City of Toronto, Canada and the United States Environmental Protection Agency have released standards as to what will be considered a green parking lot.  According to the Toronto guidelines the purpose of a green parking lot is to use all the left over spaces in parking lots in more environmentally friendly manners and also to make changes to parking lots that, without interfering with their ability to serve as a parking lot, do not have as great of a negative effect on the environment.  The Environmental Protection Agency has released similar guidelines referring to a Green Parking Lot as any lot which contains environmentally preferable features.

Eastern Hills Mall: Eastern Hills Mall is a shopping mall located at the western border of the Town of Clarence in Erie County, New York, United States.  It lies on Transit Road (New York State Route 78, a 73.49-mile state highway), which in the vicinity of the mall, divides Clarence, New York from the town of Amherst, New York east of (Buffalo, New York).  The mall is north of the junction of NY-78 with NY-5, and Main Street.  The name "Eastern Hills" refers to the very low hills that contribute to a slightly higher elevation than the bordering areas along the Onondaga Escarpment.  Eastern Hills Mall is part of a long commercial strip on Transit Road.  It consists of two long wings running north and south and one short wing running east and west, which connects the north-south wings in a "double L-shaped" formation.  A major department store is at the end of each wing.  A food court is located adjacent to the end of the long south wing.  A three-screen movie theater showing mainly independent films is also located in the mall, as well as a small New York State Department of Motor Vehicles office.  Surrounding the mall is a large, but generally unkept, parking lot.  The ratio of the mall is so large, it provides the highest parking ratio of any Buffalo area mall.  Much of the parking lot space is leased to area car dealerships to store overstock vehicles due to the low volume of shoppers at the mall.  Eastern Hills Mall is currently at approximately 70% occupancy, with many vacant stores throughout the mall and popular anchor store Dave & Busters shuttering its doors in 2015 to move to the nearby Walden Galleria.  Eastern Hills is considered by many area residents to be a "dead mall" and is listed on the website Deadmalls.com.  Most major and nationally recognized retailers have left and been replaced by independently owned "mom-and-pop" type stores, selling crafts and homemade goods.  It is common for retailers to open and close within their first few months, unable to turn a profit due to the low volume of shoppers that still visit Eastern Hills Mall.

Fairview Avenue station (Illinois): Fairview Avenue is one of three railroad stations on Metra's BNSF Railway Line in Downers Grove, Illinois.  The station is 20.3 mi from Union Station, the east end of the line.  Though its official address is on Fairview Avenue (hence the name) and Burlington Avenue, the main parking lot is on the south side of the tracks off of nearby Second Street.  All parking lots, including the main parking lot are managed by the Village of Downers Grove.

Fairfield Avenue station: Fairfield Avenue station is a SEPTA Media-Sharon Hill Trolley Line station in Upper Darby, Pennsylvania.  It is officially located at Fairfield Avenue and Terminal Square, but the intersection also includes Bywood Avenue, which is a one-way street running west along the lines until the Beverly Boulevard station.  The stop serves both Routes 101 and 102.  Only local service is provided on both lines.  This station is the penultimate stop on the Media-Sharon Hill Trolleys before reaching the 69th Street Terminal.  The Upper Darby Post Office can be found on the north side of the station.  The parking lot adjacent to the station is privately owned serving mainly a church and an H Mart.

H Mart: H Mart (Korean: H 마트 or 한아름 마트 ; ) is an American supermarket chain operated by the Hanahreum Group headquartered in Lyndhurst, New Jersey.  The chain, with locations throughout the United States, Canada, and London, specializes in providing Asian foods.  The chain also operates several Super H Mart stores.

Tinley Park – 80th Avenue station: Tinley Park – 80th Avenue Station is one of two commuter railroad stations along Metra's Rock Island District Line in Tinley Park, Illinois.  The station is officially located on 18001 South 80th Avenue, lies 25.1 mi away from LaSalle Street, the northern terminus of the line.  Parking is available on both sides of the tracks.  On the north side, where the station house resides, it's available in the east or west parking lots, while on the south side it's available in the Timber Road parking lot.

211th Street (Lincoln Highway) station: 211th Street (Lincoln Highway) is a commuter rail station along the Main Branch of the Metra Electric line in Olympia Fields, Illinois.  It is located at 211th Street between Olympian Way and Olympian Circle, and is 27.62 mi away from the northern terminus at Millennium Station.  In Metra's zone-based fare system, 211th Street Station is in zone F.  This station actually straddles three different cities.  The northern part of the platform and northern parking lot lies in Olympia Fields, the eastern parking lot in Park Forest, and the western parking lot and bus station in Matteson.

Glen Rock–Boro Hall station: Glen Rock–Boro Hall is one of two train stations in Glen Rock, New Jersey to be served by New Jersey Transit.  It is located adjacent to the Glen Rock Municipal Building, the Glen Rock Bus Station, and several businesses along Rock Road.  Pedestrian access to both platforms is available along Rock Road, and from a pedestrian underpass on Maple Avenue and the entrance to the station's parking lot on Glen Avenue.  Paid parking is available by use of a ticket machine system; previously the borough employed parking meters.

Tinley Park station: Tinley Park Station (also known as Tinley Park-Oak Park Avenue Station) is an elaborate commuter railroad station along Metra's Rock Island District line in Tinley Park, Illinois.  The station is officially located at 6700 South Street between Oak Park Avenue and 66th Court, however parking is also available on the opposite side of the station along North Street between Oak Park Avenue and 67th Avenue, as well as the center of the block of Oak Park Avenue, 173rd Street, 67th Court and 172nd Street.  Another parking area exists along South Street opposite the main parking lot at the station.  The station itself is lies 23.5 mi away from LaSalle Street, the northern terminus of the line.

North Wales station: North Wales station is a station along the SEPTA Lansdale/Doylestown Line located at Beaver and School Streets in North Wales, Pennsylvania.  In FY 2013, North Wales station had a weekday average of 790 boardings and 791 alightings.  The station includes a 167-space parking lot.  Parking is available on both sides of the tracks between Beaver Street and Walnut Street, which includes an entrance at Walnut and 5th Streets.  The east parking lot runs between the tracks and 6th Street/Railroad Street.  School Street runs through the west parking lot, and then turns southwest while that parking lot continues to follow the tracks, almost reaching Walnut Street.

Supporting paragraphs: Fairfield Avenue station H Mart
Answer: Hanahreum Group