In Mexico, the black polyethylene water tank sitting atop nearly every rooftop is rarely called a tinaco. Instead, it is universally known as el Rotoplas, a testament to a brand name so ubiquitous it entirely replaced the noun. Yet, the story of the man behind this silent infrastructure staple, Carlos Rojas Mota Velasco, remains largely unsung despite its profound impact on daily life across the country.
Founded on February 2, 1978, in Coyoacan, Mexico City, with a modest team of fewer than 30 employees, the company did not start out manufacturing water storage. Initially, the enterprise focused on producing garden flower pots and industrial milk containers. It was not until eleven years later, in 1989, that the pivotal innovation arrived: molding high-density polyethylene into lightweight, affordable water tanks that resisted cracking and outlasted the heavy, fragile traditional structures families previously relied upon.
Mexican households and businesses quickly embraced the product. By 1995, the enterprise operated eight factories and boasted 3,000 points of sale nationwide, effectively capturing and dominating the market category. Over the decades, growth expanded far beyond domestic borders; today, Rotoplas operates across 13 countries in Latin America and the United States, and is publicly traded on the Mexican Stock Exchange under the ticker symbol AGUA. Furthermore, the company has pioneered financial sustainability in the region, issuing Mexico’s first corporate sustainable bond in 2017 to fund critical clean water and sanitation initiatives.
Although Carlos Rojas Aboumrad assumed the role of CEO in 2019, the founder remains active as executive chairman of the board while dedicating his time to philanthropic efforts such as FUNED, a foundation supporting Mexican students pursuing graduate studies abroad. Beyond corporate success, Rojas Mota Velasco achieved something far more challenging: making accessible, stored clean water a normal reality for millions of families who previously went without it, fundamentally reshaping public health and domestic life across Mexico.
