Trussell joined Arizona Rock Products Association (ARPA) in 2002 as Community Relations Director and became the Executive Director in 2007.  He is responsible for the promotion and preservation of the sustainability of the rock & construction materials industry through active involvement with Arizona public officials on the policy, regulatory and community relations challenges facing the rock products industry.  In 2017, Trussell added to his responsibilities by becoming the Executive Director of the Arizona Mining Association where he showcases his advocacy for the mining industry and utilizes his skills in community relations, government affairs, regulatory processes and general legislative processes at the federal, state and local level. He has served on several boards and committees including the Technical Advisory Board for the Center of Environmentally Sustainable Mining, The Governor's Regulatory Review Council, Executive Committee for the University of Arizona's Mining School and the Board of Directors for the Arizona Chamber of Commerce and Industry to name a few.

Nicole Massarand joined the Arizona Rock Products Association in 2012. She is responsible for Event Management, administrative services and coordinates communications to the membership. An Arizona native, Nicole graduated from Northern Arizona University with a degree in Hospitality Management and completed an internship at the Phoenician resort. Nicole enjoys working with members and is excited to be part of the association. She is passionate about music, travel and enjoys spending time with family and friends.

Sean Duffy has been with the Arizona Rock Products Association (ARPA) since 2022, serving as the Community Relations Manager. In this role, he leads community relations efforts, manages communications, oversees committees, and supports government affairs and regulatory initiatives. His work focuses on fostering strong relationships between ARPA and its stakeholders, driving collaboration, and contributing to a positive community influence. Sean values the opportunity to work alongside industry leaders who have contributed to his growth and continuously share their expertise.

Outside of his professional role, Sean maintains an active lifestyle through weightlifting and running. He's passionate about snowboarding, traveling, live music, boating, and enjoys exploring Arizona's beauty.

Ninel Shyrokorad joined the Arizona Rock Products Association team in 2024 as an Office Manager with the primary responsibilities in accounting, overseeing administrative tasks and immersing herself in membership services. Holding a master's degree in Tourism, she leverages her academic background to streamline operations and enhance client experiences.

Outside of work, Ninel is an avid hiker who loves exploring new destinations around the USA and experimenting with cooking. She finds joy in assembling puzzles and reading books and cherishes quality time with her family. Known for her humble and calm demeanor, she is driven by a desire to continuously learn and grow.

Ninel is committed to delivering exceptional service to customers and prospects, ensuring that every interaction reflects her dedication to excellence.