
Tamuwa
Tamuwa, founded in 2015, is a Kenyan company at the forefront of the renewable energy sector in Africa. Its primary focus is on converting agricultural waste, specifically sugarcane bagasse, into a sustainable and affordable energy source. By producing high-density briquettes and pellets, Tamuwa provides a clean alternative to traditional fuels like firewood and charcoal, addressing issues of deforestation and promoting a circular economy.
The company's core service is the production and distribution of these biomass briquettes, which have a high calorific value and low moisture content, making them an efficient fuel source for industrial and domestic use. Tamuwa has also developed the CYNK platform, a digital end-to-end solution for the measurement, reporting, verification, and trading of high-quality voluntary emissions reductions (VERs). This platform is designed to bring trust and transparency to the carbon offset market, enabling local communities and projects to gain greater financial benefit from their environmental initiatives.
The CYNK platform is built on the Hedera network, leveraging its high-throughput, low-cost, and energy-efficient distributed ledger technology. This integration allows Tamuwa to digitize and tokenize verified emissions reductions, creating a secure and transparent marketplace for carbon credits.
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Related Projects
HashAxis is a global NFT marketplace built on the Hedera network, designed for buying, selling, and discovering digital collectibles and non-fungible tokens (NFTs). It leverages the Hedera Token Service (HTS) to mint, manage, and trade NFTs and is supported by the HBAR foundation.
A key advantage of HashAxis is its utilization of Hedera's low and predictable transaction fees, high-speed performance (capable of 10,000 transactions per second), and carbon-negative footprint. This makes creating, buying, and selling NFTs comparatively more accessible and environmentally friendly. HashAxis also supports native Hedera functionalities including “atomic swaps” for secure peer-to-peer trading and on-chain royalty payments, which provide automatic compensation to creators for secondary sales.
HashAxis integrates “Filecoin” for decentralized NFT storage and is one of the only NFT marketplaces to offer a streamlined, no-code interface for users to engage with digital collectibles across various categories, including art, profile pictures and more.

Atma.io, a venture by Avery Dennison, is a connected product cloud platform designed to bridge the physical and digital asset worlds by assigning unique digital identities to everyday items. The Atma platform enables end-to-end supply chain transparency via the Hedera blockchain, allowing businesses and consumers to track products from source to point of sale and beyond. It accomplishes this through the use of identification technologies such as RFID and QR codes to capture and manage vast amounts of data about individual product journeys.
A crucial component of Atma.io's architecture is its use of the Hedera Hashgraph distributed ledger technology (DLT) to ensure the immutability and verifiability of supply chain events and sustainability credentials. This provides a trusted layer for product authentication and helps combat counterfeiting.
Serving a multitude of industries, including apparel, retail, food and beverage, and pharmaceuticals, Atma.io offers solutions for enhanced inventory management, improved operational efficiency, and deeper consumer engagement. It can be utilized to share verifiable product origin stories, provide detailed sustainability information, and support circular economy initiatives.

The Hyperledger Fabric plugin for Hedera Consensus Service (HCS) enables Hyperledger Fabric networks to utilize the Hedera public network for transaction ordering. This plugin allows developers to replace or augment traditional Fabric ordering services such as Raft or Kafka with HCS, leveraging Hedera's asynchronous Byzantine Fault Tolerant (aBFT) consensus mechanism.
The core function of the plugin is to have Fabric orderer nodes submit endorsed transactions to a designated topic on the Hedera Consensus Service. HCS then assigns these transactions a unique, immutable, and verifiable consensus timestamp and sequence. Fabric orderers subscribe to this topic via a Hedera mirror node, retrieve the ordered transactions, and use this sequence to consistently form blocks and propagate them within the private Fabric network.
By integrating HCS, Hyperledger Fabric applications gain several benefits including enhanced trust and decentralization in the ordering process, public verifiability of transaction sequences for increased auditability, and potentially reduced operational complexity compared to managing a traditional private ordering service.
