BNB Chain is developing a new Layer 1 blockchain designed to operate alongside BNB Smart Chain (BSC), with the existing BNB token set to continue serving as the network asset for transaction fees, staking, and governance. The proposed network aims to improve transaction confirmation speeds while expanding the ecosystem's blockchain infrastructure.

Updated BNB Chain documentation cited in reports indicates that the new network is targeting block times of approximately 200 milliseconds and pre-confirmation times of around 20 milliseconds. These figures represent development targets rather than verified performance measurements from a public testnet or a production environment.

The planned blockchain will run in parallel with BNB Smart Chain and retain BNB as its core token, allowing the ecosystem to expand without introducing a separate native asset for the new network. Running a second Layer 1 alongside an established chain, rather than replacing it, reflects a broader industry pattern in which established ecosystems operate multiple parallel networks to increase capacity while preserving existing infrastructure and tooling.

The initiative was also highlighted by blockchain commentator Wu Blockchain, which referenced confirmation from Binance founder Changpeng Zhao, widely known as CZ. Detailed information about the proposed network's architecture, integration mechanisms, and interaction with existing BNB Chain applications remains limited.

Internal Development Network Already Operational

According to the reported documentation, BNB Chain has established an internal development network operating with multiple validators. This indicates that development has progressed beyond the initial planning stage, although it does not establish that the proposed blockchain is ready for public use.

The roadmap identifies late 2026 as the target period for launching a public testnet, followed by a potential mainnet launch in early 2027 The testnet would give developers and other participants an opportunity to evaluate the network before a broader production rollout.

These milestones remain planned targets, and no specific dates for either launch have been confirmed in the available information.

A public testnet would be an important step in assessing transaction processing, validator coordination, and network stability under broader testing conditions. It could also give developers an opportunity to explore applications and identify potential compatibility issues before the mainnet becomes operational.

Faster Confirmations Are a Key Development Target

The proposed network's performance goals center on shorter block intervals and rapid pre-confirmations. A target block time of 200 milliseconds would represent a significantly shorter interval between blocks than networks operating with longer block production cycles. For comparison, Ethereum currently produces a block roughly every 12 seconds, and Bitcoin's average block interval is about 10 minutes, making the 200-millisecond target a small fraction of the block intervals used by the two largest blockchain networks.

Pre-confirmations are intended to provide an earlier indication that a transaction is likely to be included or processed, potentially improving the user experience for applications that depend on rapid feedback. However, the practical benefits will depend on the network's final design, confirmation guarantees, and performance under real-world conditions.

If achieved, the targeted confirmation speeds could benefit applications that require faster transaction feedback while giving developers another infrastructure option within the broader BNB Chain ecosystem.

The available documentation does not yet establish how the new blockchain will communicate with BNB Smart Chain, transfer assets between networks, or support applications operating across both environments. Those details will be important in determining the extent of interoperability available to users and developers, and they remain a key item to watch as technical documentation emerges ahead of the planned testnet.

BNB Chain addressed the initiative publicly on X on October 26, 2026:

Have your say on the new L1. Do you have questions about BNB Chain's new L1 or suggestions for what comes next? The forum is open, let's hear them below — BNB Chain (@BNBCHAIN) October 26, 2026 (source post)

BNB Remains Central to the Ecosystem

Under the proposed design, BNB will continue to support gas payments, staking, and governance on the new blockchain. BNB has served as the gas and staking asset on BSC since that network launched in 2020, so extending the same role to a second chain would keep core network functions unified across the ecosystem. Maintaining the same token could simplify the ecosystem's economic structure by avoiding the need to introduce a separate native asset for core network functions.

The project could also expand the infrastructure available to developers building decentralized applications and blockchain-based financial products. Its broader significance will depend on technical execution, developer adoption, and the extent to which applications can use the new network alongside existing BSC infrastructure.

The development comes as the BNB Chain ecosystem explores additional blockchain applications, including tokenized assets and other digital financial services. A parallel Layer 1 network could provide additional capacity or specialized infrastructure, depending on its eventual capabilities.

The proposed blockchain's long-term impact will depend on whether BNB Chain delivers its performance targets, establishes effective interoperability with BSC, and attracts meaningful adoption ahead of the anticipated 2027 mainnet launch.

Market implications remain uncertain. The available information does not establish that the announcement has produced measurable changes in BNB trading activity or transaction volumes. Developers and investors are likely to gain a clearer understanding of the project's significance as technical specifications emerge and the planned public testnet approaches, with the late-2026 testnet window the nearest scheduled milestone.