Sanjeev Gupta, the metals tycoon whose main British business was forced into compulsory liquidation last week, is facing a deepening probe by Australian regulators into his operations in the country.

Sky News has learnt that officials from the Australian Securities & Investment Commission (ASIC) last week served Mr Gupta’s Liberty Steel group with a new demand for information about its activities.

Sources said the regulator had also taken possession of a mobile phone belonging to Mr Gupta as part of the probe.

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One insider said that other senior executives at the company may also have had electronic devices confiscated, although the accuracy of this claim could not be verified on Thursday morning.

Both ASIC and a spokesman for Mr Gupta’s GFG conglomerate refused to comment on the suggestion that a search warrant had been produced by the watchdog.

ASIC’s deepening investigation comes a month after it said that three of GFG Alliance’s companies had been ordered by the Supreme Court of New South Wales to lodge outstanding annual reports with it.

It is the latest headache to hit Mr Gupta, whose companies remain under investigation by the Serious Fraud Office in the UK.

Last week, the Official Receiver took control of Speciality Steels UK following a winding-up petition from creditors led by Greensill Capital, the collapsed finance firm.

Mr Gupta remains intent on buying SSUK back, and has assembled financing from BlackRock, the world’s largest asset manager, Sky News revealed last week.

SSUK employs nearly 1,500 people at steel plants in South Yorkshire, and makes highly engineered steel products for use in sectors such as aerospace, automotive and oil and gas.

“[Gupta Family Group] will now continue to advance its bid for the business in collaboration with prospective debt and equity partners and will present its plan to the official receiver,” Jeffrey Kabel, chief transformation officer, at Liberty Steel, said after SSUK’s collapse.

“GFG continues to believe it has the ideas, management expertise and commitment to lead SSUK into the future and attract major investment.”

“The plan that GFG presented to the court would have secured new investment in the UK steel industry, protecting jobs and establishing a sustainable operational platform under a new governance structure with independent oversight,” Mr Kabel added.

“Instead, liquidation will now impose prolonged uncertainty and significant costs on UK taxpayers for settlements and related expenses, despite the availability of a commercial solution.”

Mr Gupta wants to hand control of SSUK to his family in a bid to alleviate concerns about his influence.

One source close to the situation claimed that the ownership structure devised by Mr Gupta would be independent, ring-fenced from him and have “robust standards of governance”.

Behind Tata Steel and British Steel, SSUK is the third-largest steel producer in the country.

Other parts of Mr Gupta’s empire have been showing signs of financial stress for years.

Mr Gupta is said to have explored whether he could persuade the government to step in and support SSUK using the legislation enacted to take control of British Steel’s operations.

His overtures were dismissed by Whitehall officials.

He had previously sought government aid during the pandemic but that plea was also rejected by ministers.

The world’s most valuable company, and first to be valued at $4trn (£2.9trn), beat market expectations in keenly anticipated financial results.

Microchip maker Nvidia recorded revenues of $46.7bn (£34.6bn) in just three months up to July, latest financial data from the company showed, slightly better than Wall Street observers had expected.

The company’s performance is seen as a bellwether for artificial intelligence (AI) demand, with investors paying close attention to see whether the hype is overblown or if significant investment will pay off.

Originally a creator of gaming graphics hardware, Nvidia’s chips help power AI capability – and the UK’s most powerful supercomputer.

Nvidia’s graphics processors underpin products such as ChatGPT from OpenAI and Gemini from Google.

Other tech giants – Microsoft, Meta and Amazon – make up Nvidia’s biggest customers and are paying large sums to embed AI into their products.

Why does it matter?

Nvidia has been central to the boom in AI development and the surge in tech stock valuations, which has seen stock markets reach record highs.

It represents about 8% of the value of the US S&P 500 stock market index of companies relied on to be stable and profitable.

Strong results will continue to fuel record highs in the market. Conversely, results that fail to live up to the hype could trigger a market tumble.

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Nvidia itself saw its share price rise more than 40% over the past year. Its value impacts anyone with cash in the US stock market, such as pension funds.

The S&P 500 rose 14% over the past year, and the tech-company-heavy NASDAQ gained 21%, largely thanks to Nvidia.

As such, its earnings can move markets as much as major economic or monetary policy announcements, like an interest rate decision.

What next?

Revenue rises are forecast to continue to rise as Nvidia said it expected a rise to roughly $54bn (£40bn) in the next three months, more than the $53.14bn (£39.3bn) anticipated by analysts.

This excludes any potential shipments to China as export of Nvidia’s H20 chip, designed with the Biden administration’s export crackdown on advanced AI powering chips in mind, had been banned under US national security grounds.

But in recent weeks, Nvidia and another chipmaker, AMD, reached an unprecedented agreement to pay the Trump administration a 15% portion of China sales in return for export licences to send chips to China.

There were no H20 sales at all to China in the second quarter of the year, the period for which results were released on Wednesday evening.

Previously, 13% of Nvidia’s revenue came from China, with nearly 50% coming from the US.

Market reaction

Despite the expectation-beating results, Nvidia shares were down in after-hours trading, as the massive revenue rises previously booked by the company were not repeated in the latest quarter.

Compared to a year ago, revenues rose 56% and 6% compared to the three months up to April.

The absence of Chinese sales in forecasts appeared to disappoint.

A larger than expected hike in the energy price cap from October is largely down to higher costs being imposed by the government.

The typical sum households face paying for gas and electricity when using direct debit is to rise by 2% – or £2.93 per month – to £1,755, the energy watchdog Ofgem announced.

The current price cap is £1,720 a year. A 1% increase had been widely forecast.

The latest bill settlement, covering the final quarter of the year until the next price review takes effect from January, will affect around 20 million households.

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There are 14 million others, such as those on pre-payment meters, who will also see bills rise by a similar level.

Those on fixed deals, which are immune from price cap shifts until such time as the term ends, currently stands at 20 million.

Wholesale prices – volatile since Russia’s invasion of Ukraine back in February 2022 – have been the main driver of rising bills.

But they are making little contribution to the looming increase.

Ofgem explained that government measures, such as the expansion of the warm home discount announced in June, were mainly responsible.

The discount is set to add £15 to the average annual bill.

It will provide £150 in support to 2.7 million extra people this year, bringing the total number of beneficiaries to six million.

The balance is made up from money needed to upgrade the power network.

Tim Jarvis, director general of markets at Ofgem, said: “While there is still more to do, we are seeing signs of a healthier market. There are more people on fixed tariffs saving themselves money, switching is rising as options for consumers increase, and we’ve seen increases in customer satisfaction, alongside a reduction in complaints.

“While today’s change is below inflation, we know customers might not be feeling it in their pockets. There are things you can do though – consider a fixed tariff as this could save more than £200 against the new cap. Paying by direct debit or smart pay as you go could also save you money.

“In the longer term, we will continue to see fluctuations in our energy prices until we are insulated from volatile international gas markets. That’s why we continue to work with government and the sector to diversify our energy mix to reduce the reliance on markets we do not control.”

The looming price cap lift will leave bills around the same sort of level they were in October last year but it will take hold at a time when overall inflation is higher.

Food price increases, also partly blamed on government measures such as the national insurance contributions hike imposed on employers, have led the main consumer prices index to a current level of 3.8%.

It is predicted to rise to at least 4% in the coming months, further squeezing household budgets.

Ministers argue that efforts to make the UK less reliant on natural gas, through investment in renewable power sources, will help bring down bills in future.

Energy minister Michael Shanks said: “We know that any price rise is a concern for families. Wholesale gas prices remain 75% above their levels before Russia invaded Ukraine. That is the fossil fuel penalty being paid by families, businesses and our economy.

“That is why the only answer for Britain is this government’s mission to get us off the rollercoaster of fossil fuel prices and onto clean, homegrown power we control, to bring down bills for good.

“At the same time, we are determined to take urgent action to support vulnerable families this winter. That includes expanding the £150 Warm Home Discount to 2.7 million more households and stepping up our overhaul of the energy system to increase protections for customers.”