Question: The company that markets Polysilicone-15 as Parsol SLX is headquartered where?

Context paragraphs:
VanEck: Founded in 1955, VanEck is an investment management firm headquartered in New York, NY and having satellite offices in Frankfurt, Germany and Australia.  Van Eck Associates Corporation and Van Eck Securities Corporation are also referred to as VanEck.  VanEck Vectors ETFs (about 75% of assets under management) and VanEck Mutual Funds (about 25% of assets under management) represent the company's flagship investment offerings.  The majority of VanEck's assets are gold investments.  The actively managed VanEck Mutual Funds cover the natural resource equities and commodities markets, emerging markets equities, emerging markets bonds, and liquid alternatives asset classes.  The index-based VanEck Vectors ETFs are purpose-built, aimed at providing exposure to asset classes that are underrepresented in investor portfolios, or, offering an alternative approach to established investment categories.  The firm's products are sold nationwide through retail brokers, financial planners, and investment advisors.

Strides Shasun: Strides Arcolab is an Indian pharmaceutical company, headquartered at Bangalore in southern India.  The company manufactures pharmaceutical products, over-the-counter drugs and nutraceuticals. Products include softgel capsules, hard-gel capsules, tablets and dry and wet injectables. Its softgel manufacturing capability consists of an annual capacity of 50,000 machine hours or about three billion softgel capsules.  The company has 15 manufacturing sites in six countries and marketing presence in 50 countries.  In the United States and Canadian markets, the company partners with generic companies to supply retail and hospital generics in injectable products and softgels.  In European markets, it has long-term relationships for the development of projects and supply agreements with the European companies .  In Australia and New Zealand, the company is engaged in manufacturing and supply of soft gels and value-added manufacturing.  The company has development and supply agreements with South African companies .  The company's stock trades on the Bombay Stock Exchange and on the National Stock Exchange of India.

Polysilicone-15: Polysilicone-15 (INCI) is an organic compound used in hair products like shampoos, conditioners, hair sprays, pomades and color treatment products to absorb UVB radiation.  In the EU, it is also approved for use in sunscreens and cosmetics.  The absorption maximum is at about 310 nm.  It is marketed as Parsol SLX by DSM.

DSM (company): Koninklijke DSM N.V. (Royal DSM, commonly known as DSM), is a Dutch multinational active in the fields of health, nutrition and materials.  Headquartered in Heerlen, at the end of 2016 DSM employed 20,786 people in around 50 countries and posted net sales of €7,920m.

Heaven Hill: Heaven Hill Distilleries, Inc. is an American, private family-owned and operated distillery company headquartered in Bardstown, Kentucky that produces and markets the Heaven Hill brand of Kentucky Straight Bourbon Whiskey and a variety of other distilled spirits.  Its current distillery facility, called the Heaven Hill Bernheim distillery, is in Louisville, Kentucky.  It is the seventh-largest alcohol supplier in the United States, the second-largest holder of bourbon whiskey inventory in the world, the largest independent family-owned and operated producer and marketer of distilled spirits in the United States, and the only large family-owned distillery company headquartered in Kentucky (not counting the Brown-Forman Corporation, which is publicly traded but more than two-thirds family-controlled, or the Sazerac Company, which is family-owned but headquartered in Louisiana).

Element Markets: Element Markets, LLC is a limited liability company that provides environmental asset management and compliance services to institutional clients in North America.  Its services span the greenhouse gas, emissions, and renewable energy credit markets.  Element Markets also develops renewable energy and greenhouse gas emission reduction (carbon offset) projects.  Element Markets was founded in 2005 and is headquartered in Houston, Texas.

Interstate Batteries: Interstate Battery System of America, Inc., a.k.a. Interstate Batteries, is a privately owned company that markets automotive batteries manufactured by Exide Technologies, Johnson Controls and others through independent distributors.  The company is headquartered in Dallas, Texas, and it also markets marine/RV, mobility, motorcycle, lawn and garden, and other lines of batteries in the starting, lighting and ignition (SLI) markets.  Interstate Batteries operates a distributor network that supplies batteries and power solutions to over 200,000 dealers.  They also have distributors in Australia, China, Colombia, Costa Rica, Dominican Republic, Guatemala, Guyana, and Panama, with more foreign distributors planned.  Additionally, they operate over 200 corporate and franchise owned retail stores.  Interstate plans to expand worldwide locations in coming years as part of a company-wide growth and development initiative.

Country Markets Limited: Country Markets Limited is a United Kingdom cooperative limited company headquartered in Chesterfield, Derbyshire.  It coordinates the organisation of regular sales of home-produced goods by individual producers.  All Country Markets are run co-operatively with no table dedicated to any individual.  Every member of each market is expected to take their turn staffing the stalls and helping to run the market.  Each producer receives about 90% of the sales income from their produce monthly.  These principles have shaped the markets since they were established by the Women's Institute in 1919.

Towerstream: Towerstream Corporation (OTCQB: TWER) is a Fixed Wireless Fiber Alternative company delivering high-speed Internet access to businesses.  The Company offers broadband services in 12 urban markets including New York City, Boston, Los Angeles, Chicago, Philadelphia, the San Francisco Bay area, Miami, Seattle, Dallas-Fort Worth, Houston, Las Vegas-Reno, and the greater Providence area, where the company is headquartered.  In 2014, Towerstream launched its On-Net fixed-wireless service offering On-Net building tenants access to dedicated, symmetrical high-speed Internet connectivity, with a premier SLA, at market-setting prices.  Founded in 1999 by Philip Urso (MCF Communications, eFortress) and Jeffrey Thompson (eFortress), Towerstream held its first public offering in January 2007 and traded on the NASDAQ Capital Markets under symbol TWER.  In 2016 the stock had declined in price, was delisted from NASDAQ, and moved to the over-the-counter market.

Actuant: Actuant Corporation is an American diversified industrial company serving customers from operations in more than 30 countries.  The Actuant businesses are leaders in a broad array of niche markets including branded hydraulic tools and solutions; specialized products and services for energy markets and highly engineered position and motion control systems.  The Company was founded in 1910 and is headquartered in Menomonee Falls, Wisconsin.  Actuant business operations are divided into three segments focused on the markets they serve.

Supporting paragraphs: Polysilicone-15 DSM (company)
Answer: Heerlen