Import Bottom Ash — Buy in wholesale FOB from Supplier in Indonesia

Bottom ash is a coarse granular residue from coal combustion, collected from furnace grates rather than carried in flue gases like fly ash. PT. Arumi Solusi Negeri sources this material from Indonesian thermal power generation, offering a pozzolanic aggregate for bulk civil engineering applications. The listed material composition comprises silica (SiO2), alumina (Al2O3), and iron oxide (Fe2O3), the classic oxide suite indicating residual glassy and crystalline phases formed under boiler combustion conditions. The supplier explicitly notes suitability for land reclamation, a use case requiring particular attention to leachate characteristics and particle stability.

Typical bottom ash exhibits particle sizes ranging from sand to fine gravel, with angular to irregular morphology and a porous surface texture that enhances pozzolanic reactivity when activated. The oxide composition given aligns with Class F or intermediate pozzolanic behaviour, though exact classification depends on the coal source and combustion temperature. In Indonesia's power generation sector, bottom ash generation rates typically correlate with coal calorific value and ash content, with bituminous and sub-bituminous coals producing distinct slag characteristics. Standard practice involves air-cooling followed by crushing or screening to specified gradations before bulk shipment.

Primary buyers include civil engineering contractors for road base and embankment fill, concrete producers seeking partial cement replacement, and environmental remediation firms undertaking land reclamation. The reclamation application cited by PT. Arumi Solusi Negeri demands verification of heavy metal leaching potential and long-term settlement behaviour under loading. Trade in bottom ash moves in bulk by tonne, with buyers typically requiring conformity to national standards for fill materials or project-specific environmental approvals. Importers should confirm particle size distribution, compaction characteristics, and environmental compliance documentation before specifying material for structural or sensitive applications.

PT. Arumi Soluli Negeri maintains its registered office at Andalusia Square, Jl. Ra Kartini No. 07, Kav. B-3, Gresik 61122, Jawa Timur, Indonesia. This locates the company within East Java's industrial corridor, proximate to major coal-fired power stations that constitute the likely source of the bottom ash offered. The supplier holds a harbor trust tier designation, indicating a verified business registration and operational presence, though the response rate shows 0.00 percent with zero average response hours recorded. This signal suggests the listing may be passively maintained or that communication channels are not configured for direct platform inquiry.

The supplier's stated product scope centres on bottom ash as a construction aggregate and reclamation material, with no diversification into processed ash products such as lightweight aggregate or geopolymer precursors disclosed. The custom specification emphasises sustainability positioning and green construction demand, language consistent with current Indonesian regulatory trends toward coal ash utilisation rather than landfill disposal. No manufacturing capacity, annual throughput, or client references are provided in the source data. Importers should independently verify PT. Arumi Solusi Negeri's material handling capabilities, quality control procedures, and chain of custody documentation from power plant source to shipment point.