VALENCIA, SPAIN – September 2, 2025 — In a move that underscores Glander International Bunkering’s strategic commitment to both reliable fuel supply and forward-looking innovation, the company has appointed Alvaro Sierra as Managing Director of its Valencia office, effective September 1, 2025. His promotion marks a significant milestone for the Mediterranean-based hub, reinforcing its dual role as a trusted bunkering partner for conventional marine fuels and a key driver of emerging fuel solutions across the Mediterranean and Central European markets. Sierra’s appointment reflects not only his personal rise within the organization but also the growing strategic importance of the Valencia office within Glander’s global network.
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Sierra’s elevation is more than a promotion — it’s a signal of intent.
Since joining the company in 2019 as a Bunker Trader, he has played a pivotal role in shaping Valencia’s growth, delivering high-impact solutions across both traditional and alternative fuel segments. His leadership arrives at a time when the maritime sector demands agility, compliance, and fuel flexibility—and Glander is positioning itself to meet those demands on all fronts.
From Trader to Trailblazer: Alvaro’s Rise
Alvaro’s journey within Glander International Bunkering is a case study in leadership development and results-driven performance. After rapidly rising through the ranks to become Sales Manager in January 2024, he spearheaded a wave of high-impact projects that positioned the Valencia office at the forefront of the industry’s sustainability agenda.
Now, as Managing Director, Alvaro is set to deepen the office’s focus on delivering complex, compliant, and climate-conscious fuel solutions. His vision for the Valencia office is clear: to serve not only as a bunkering hub but also as a trusted strategic partner guiding clients through the evolving landscape of alternative fuels, carbon regulations, and maritime sustainability mandates.
“Our responsibility goes beyond bunker delivery,” said Alvaro. “We are working closer than ever with both suppliers and clients to navigate the complexities of this transition. That requires agility, genuine partnership, and deep market understanding—and that’s what we bring to the table every single day.”
Valencia: A Strategic Anchor for Future Fueling
Since its founding in August 2018, the Valencia office has matured into one of the company’s most strategically positioned entities. Nestled near the Strait of Gibraltar, it offers unparalleled access to the Mediterranean, Atlantic, Iberian, and North African maritime corridors—making it a prime location for innovation in fuel logistics.
Under Alvaro’s commercial and operational leadership, the office has orchestrated several industry-first achievements that underscore its importance as a sustainability-focused marine energy hub:
- LNG & BioLNG Milestones: Orchestrated the first-ever LNG bunkering at Finland’s Port of Kokkola and executed complex BioLNG deliveries in Antwerp and Hamina for Neste’s advanced fleet—all delivered with full certification and under tight operational windows.
- Cross-Office Biofuel Innovation: In tandem with the Dubai office, led the first B24 FAME/FO blend delivery for Rubis Group, showcasing intercontinental collaboration and expertise in advanced biofuel deployment.
- HVO for Cruise Vessels: Partnered with Cepsa to deliver second-generation Hydrotreated Vegetable Oil (HVO) biofuels to Mediterranean cruise ships—reducing CO₂ emissions by up to 90%, proving the commercial and environmental viability of next-gen fuels in the leisure sector.
A Vision for the Future: Beyond Bunker Delivery
As regulatory frameworks tighten and market demands evolve, Alvaro’s leadership is set to position Valencia not just as a supply point—but as a consultative powerhouse offering deep insights, regulatory guidance, and flexible fueling strategies tailored to the needs of tomorrow’s fleet operators across both conventional and alternative fuels within the region.
His customer-centric leadership style, honed through years of direct client engagement, will be instrumental in helping shipowners and charterers balance commercial pressures with environmental imperatives.
About Glander International Bunkering
Founded in 1961, Glander International Bunkering is one of the maritime industry’s most trusted and innovative bunker trading firms. With a global network of strategically placed offices and a diversified client base—including offshore, tanker, container, cruise, naval, and fishing sectors—the company offers 360-degree expertise across conventional and alternative marine fuels.
With a growing focus on sustainability, transparency, and regulatory alignment, Glander International Bunkering continues to play a pivotal role in helping the industry chart its course toward a low-carbon future.