HEISTON specializes in mobile phone screen assemblies, LCD, OLED, and other after-sales repair parts. Its overall distribution pattern is "covering 80–90+ countries and regions worldwide". Although it does not release sales rankings by individual country, insights from its official website, Hong Kong Electronics Fair, and the founder's overseas activities suggest that the key hot-selling and cultivated markets are mainly these types:
Latin America (especially Brazil): The founder has repeatedly appeared at Brazilian exhibitions, explicitly listing Brazil as a core market that is "very large and worthy of deep localization efforts." Other countries in South America (such as Mexico, Colombia, Chile, etc.) also achieve volume through wholesalers
Middle East and Africa: Use Dubai as a transit hub to radiate to the Middle East; list "Middle East and Latin America" as key emerging expansion markets
Southeast Asia and South Asia: Indonesia, the Philippines, Vietnam, India, etc. - These regions have a large demand for repair and after-sales services, with a high inventory of Apple/Huawei/Xiaomi models, making them key areas for regular wholesale business
Europe and North America: Supply to repair chains and dealers through CE/FCC/RoHS compliant versions, focusing on mid-to-high-end after-sales channels, rather than popular products for open retail
Traffic from Hong Kong, Macao, and global exhibitions: The Hong Kong Electronics Fair has received buyers from 148 countries, serving as a window for overseas orders rather than a terminal consumer market