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US Tightens Restrictions on High-Tech Memory Chip Exports to China

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The United States has implemented new export controls targeting high-bandwidth memory (HBM) chips, a critical component in artificial intelligence (AI) applications, to restrict China’s access to advanced technology. These restrictions apply to both US-made and foreign-produced HBM technology, highlighting the ongoing tech rivalry between the two nations.

What is High-Bandwidth Memory?

HBM chips are cutting-edge memory components capable of storing and transmitting data faster than traditional dynamic random-access memory (DRAM). Designed for high-performance computing systems, graphics cards, data centers, and autonomous vehicles, HBM chips are vital for powering AI applications, including generative AI models.

G Dan Hutcheson, Vice Chair of TechInsights, explained the importance of HBM in AI systems: “The processor and the memory are two essential components to AI. Without the memory, it’s like having a brain with logic but not having any memory.”

Impact on China’s Tech Industry

The latest restrictions, announced on December 2, build upon previous measures introduced by the Biden administration over the last three years. These controls aim to prevent China from acquiring technologies that could bolster its military capabilities.

In response, China imposed its own restrictions on exporting critical materials like germanium and gallium, essential for semiconductor manufacturing.

Experts suggest the new rules will temporarily hinder China’s ability to acquire high-quality HBM chips but are unlikely to permanently block its progress. “In the short run, China’s access to advanced HBM will be curtailed,” said Jeffery Chiu, CEO of Ansforce. “However, in the long term, China is likely to develop its own production capabilities, albeit with less advanced technology.”

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China’s leading memory chip producers, Yangtze Memory Technologies and Changxin Memory Technologies, are reportedly ramping up efforts to establish HBM production lines, aligning with the nation’s strategic goal of tech self-sufficiency.

HBM’s Role in AI Advancements

HBM chips are prized for their larger storage capacity and faster data transmission speeds, which are critical for the performance of AI applications. These attributes allow AI models to process complex computations without delays or glitches, significantly enhancing their efficiency.

Global Leaders in HBM Production

The global HBM market is dominated by three major players: South Korea’s SK Hynix and Samsung, and the US-based Micron Technology. Together, Hynix and Samsung control around 90% of the market, with Micron aiming to increase its share to 20–25% by 2025.

Manufacturing Challenges and Costs

HBM production involves stacking ultra-thin memory layers, each as thin as half the diameter of a human hair, using advanced packaging techniques. This complex process makes HBM chips significantly more expensive than conventional memory chips.

“The precision required in drilling and stacking these chips is extraordinary, making the process akin to building a house of cards,” Hutcheson noted.

The Broader Implications

As the competition in AI and semiconductor technology intensifies, these restrictions signal the US’s intent to maintain a technological edge, while China’s focus on self-reliance underscores the high stakes in this global tech rivalry.

Technology

Amazon Begins Test Flights for UK Drone Delivery Service

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Amazon has started test flights for its UK drone delivery service, marking a key step ahead of the planned launch later this year. The company confirmed that a limited number of drones have taken off from its base in Darlington’s Symmetry Park, although deliveries to customers have not yet begun.

Darlington was chosen last January as Amazon’s UK test centre, and the company plans to use the location to trial airborne deliveries for eligible residents. When the service goes live, packages weighing less than five pounds (2.3 kilograms) will be delivered within two hours, the firm said.

Amazon’s latest drone, the MK30, will be used in the trials. The company highlighted the technology onboard, which allows drones to detect and avoid obstacles such as clotheslines, trampolines, and other hazards that may not appear on satellite maps. Cameras continuously monitor the surrounding airspace and can direct the drone to take evasive action if other aircraft enter its flight path.

“The perception technology relies on sophisticated machine learning models trained to recognise various objects, including people, animals, physical barriers, and other airborne vehicles,” Amazon said.

Safety remains a central focus for the company. David Carbon, vice president of Amazon Prime Air, said the drones are designed to operate quietly and efficiently while prioritising the safety of people, pets, and property. He added that the company is working closely with Darlington Council and the UK Civil Aviation Authority during the testing phase.

“This marks an exciting next step in bringing drone delivery to the UK,” Carbon said. “We look forward to demonstrating how this innovative technology can serve the people of Darlington while maintaining the highest safety standards.”

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Amazon’s drone delivery initiative is part of its wider Prime Air programme, which has been in development for several years. The service aims to offer faster delivery times for lightweight packages, using autonomous aircraft that can navigate urban and suburban environments.

The launch in the UK follows successful trials in the United States, where Amazon has been testing similar technology to improve delivery speed and efficiency. As regulations for commercial drone flights evolve, the company is aiming to integrate these autonomous devices into its logistics network while ensuring public safety.

Residents in Darlington may be among the first in the UK to receive packages by air, as Amazon moves closer to making drone deliveries a reality. The company has emphasised that testing will continue carefully, with human oversight and advanced safety systems in place to ensure smooth operations.

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Open-Source Recycling Movement Gains Ground as Precious Plastic Community Recycles 1,400 Tonnes in One Year

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A grassroots movement to democratize plastic recycling is gaining traction globally, with over 1,400 tonnes of plastic recycled last year by members of the Precious Plastic community. The initiative, which began in 2014 with a free online blueprint for a plastic recycling machine, is now a worldwide network of more than 2,000 local projects operating in 56 countries.

Founded by Dutch designer Dave Hakkens while still a student at the Eindhoven Design Academy, Precious Plastic was built on the principle of open-source accessibility. The project offers free designs, tutorials, and business tools, enabling individuals and communities to build small-scale recycling operations with locally available materials.

“From the start, the idea was to lower the technological barrier and empower communities to recycle plastic on their own terms,” said Jerry de Voos, an industrial designer who joined the project in 2017. He noted that the initiative has gone through four major design iterations, shaped by feedback and experimentation from users around the world.

The project’s emphasis on local action is proving especially effective in regions where traditional recycling infrastructure is limited or non-existent. Despite global awareness campaigns and government pledges, only about 9% of plastic is currently recycled worldwide, with the rest ending up in landfills, oceans, or incinerators. The environmental toll is severe: studies project that by 2050, nearly all seabirds will have ingested plastic. More recently, a 2025 Italian study found microplastics in human ovarian tissue, raising new public health concerns.

While large-scale recycling efforts often struggle due to high costs and weak investor confidence, Precious Plastic’s decentralized model offers a lower-cost, community-driven alternative. Startups using the platform’s tools are making tangible progress. In Singapore, Plastify partners with hospitals to repurpose medical packaging into souvenirs for the Formula One Grand Prix. In Italy, Turin-based Plastiz transforms discarded traffic lights and coffee pods into architectural panels. In war-torn Ukraine, No Waste Ukraine is using recycled plastic to produce furniture and other goods, helping to normalize recycling in a country where it was once stigmatized.

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“Precious Plastic has enabled a new wave of entrepreneurs and activists to turn waste into opportunity,” said de Voos. “Our goal was always to increase recycling, and now we’re seeing real, global momentum.”

As plastic pollution remains one of the planet’s most urgent environmental issues, open-source solutions like Precious Plastic may be key to creating scalable, local responses to a global crisis.

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Calls for European Supergrid Intensify Amid Energy Crises and Climate Pressures

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As Europe battles growing climate extremes, energy instability, and geopolitical pressures, momentum is building around a decades-old concept: the European supergrid. The idea, once considered aspirational, is regaining urgency amid widespread power outages and rising reliance on renewable energy.

The European Union is set to install 89 gigawatts of new renewable energy capacity in 2025, a 10-gigawatt increase from the previous year, most of it driven by solar projects. This expansion is central to the EU’s 2030 climate targets, which aim to cut net greenhouse gas emissions by at least 55 percent from 1990 levels. Yet as renewable penetration grows, so too does the need for a more integrated, resilient power network.

Recent blackouts in Spain and Portugal highlighted vulnerabilities in the continent’s energy systems, prompting experts to revisit the supergrid concept. A pan-European high-voltage grid could allow electricity generated from wind in the north or solar in the south to flow seamlessly across borders, balancing supply and demand.

A supergrid would allow green energy to flow across borders efficiently, balancing supply and demand; it could smooth out energy highs and lows, cut prices, boost resilience, and help Europe ditch fossil fuels faster,” said Michael Ashley Schulman, CIO at Running Point Capital Advisors.

France, Germany, the UK, and Italy are already developing “mini-supergrids” — multi-terminal high-voltage DC (HVDC) networks. Over time, these could be linked like a motorway system, gradually forming a broader supergrid. Offshore grids are also gaining traction as a cost- and carbon-efficient way to integrate large-scale wind energy.

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But building a Europe-wide grid is no simple task. Regulatory fragmentation, complex permitting across countries, and local opposition have slowed progress. “Stitching together dozens of national grids isn’t just an engineering project; it’s a political minefield,” Schulman noted.

Beyond logistics, some warn that the supergrid must reflect more than economic efficiency. “A supergrid must serve ecological integrity, social equity, and energy democracy — not just corporate interests,” said Therese Guttmann of Vienna’s Institute for Ecological Economics.

Critics argue that decentralised solutions and local energy systems should develop in parallel to avoid replacing one form of centralisation with another. Others caution against cybersecurity risks and systemic fragility, warning that overconnectivity could make the entire continent vulnerable to disruptions.

The European Commission estimates that €584 billion in grid investment is needed by 2030 to meet energy transition targets. While the supergrid could play a major role, analysts agree it must be part of a broader mix of infrastructure improvements and decentralised technologies.

As the continent continues to navigate a fragile energy landscape, the supergrid remains both a tantalising vision — and a test of Europe’s ability to act collectively.

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