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EMCOR Group, Inc. provides construction and facilities, building, and industrial services in the United States and the United Kingdom. It offers design, integration, installation, start-up, operation, and maintenance services related to power transmission, distribution, and generation systems; energy solutions; premises electrical and lighting systems; process instrumentation; low-voltage systems; voice and data communications systems; roadway and transit lighting, signaling, and fiber optic lines; computerized traffic control systems, and signal and communication equipment; heating, ventilation, air conditioning, refrigeration, and geothermal solutions; clean-room process ventilation systems; fire protection and suppression systems; plumbing, process, and high-purity piping systems; controls and filtration systems; water and wastewater treatment systems; central plant heating and cooling systems; crane and rigging services; millwright services; and steel fabrication, erection, and welding services. The company also provides building services that covers commercial and government site-based operations and maintenance; facility management, maintenance, and services; energy efficiency retrofit services; military base operations support services; services for indoor air quality; floor care and janitorial services; landscaping, lot sweeping, and snow removal services; vendor management and call center services; installation and support for building systems; program development, management, and maintenance for energy systems; technical consulting and diagnostic services; infrastructure and building projects; modification and retrofit projects; and other building services, including reception, security, and catering services. In addition, it offers refinery turnaround planning and engineering; welding; overhaul and maintenance; instrumentation and electrical; and renewable energy services. The company was incorporated in 1987 and is headquartered in Norwalk, Connecticut.

PowerShares Financial Preferred Portfolio (the Fund) is a non-diversified fund. The Fund is based on the Wells Fargo Hybrid and Preferred Financial Index (WHPSF Financial Index) (the Index). The Index tracks the performance of the United States-listed securities issued by financial institutions. The Index is rebalanced monthly. The Fund normally invests at least 90% of its total assets in preferred securities that consists of the Index. The Fund may contain securities in the financial and insurance sectors. The Fund's investment advisor is Invesco PowerShares Capital Management LLC.

Provident Energy Ltd. (PEL) owns and operates a natural gas liquids (NGL) midstream services and marketing business. The Company's midstream facilities are located in Western Canada and in the NGL markets in Eastern Canada and the United States. The business of PEL is to manage and administer the operating activities associated with the natural gas liquids midstream processing and marketing business held by Provident. Provident Midstream Holdings LP (PMHLP) directly and indirectly holds interests in the subsidiaries of PEL, including Provident Midstream LP (PMLP) and Provident Midstream Inc. (PMI). PMLP is a limited partnership registered in the Province of Alberta. PMHLP and PMI are the limited partners of PMLP with a 99.9% total interest in the partnership. In October 2011, the Company acquired 66% in Three Star Trucking Ltd. In April 2012, Pembina Pipeline Corporation acquired the Company.

Guggenheim China Real Estate ETF (the Fund) seeks investment results, which correspond generally to the performance of an equity index called the AlphaShares China Real Estate Index (the Index). The Index measures and monitors the performance of the investable universe of publicly traded companies and real estate investment trusts (REITs) deriving their revenues from real estate development, management and/or ownership of property in the People's Republic of China or the Special Administrative Regions of China, which are Hong Kong and Macau. The Index may include Hong Kong listed securities, including China H-shares and Red Chips. The Fund focuses to invest at least 90% of its total assets in common stock, American depositary receipts (ADRs), American depositary shares (ADS), global depositary receipts (GDRs) and international depositary receipts (IDRs). Guggenheim Funds Investment Advisors, LLC acts as investment advisor of the Fund.