Canada’s junior mining companies, hit hard by low metal prices and tight financial markets, dropped in market value to the lowest level in at least six years, according to an annual report.

The market capitalization of all junior minors fell by about half in the past year to $11.1 billion, according to the PricewaterhouseCoopers report.

As of June 30, the top 100 accounted for $6.5 billion of that total, down 44 per cent from 2012. That followed a similar slide in 2011 when the value peaked at $20.6 billion.

“The health of the junior mining sector has been on a downward spiral since 2011, when commodity prices were at or near record highs and markets recovered from the devastating impact of the 2008-09 global financial crisis,” said the seventh annual report released Monday.

The accounting firm said the mining companies listed on the TSX Venture Exchange also saw their cash and short-term investments drop by $695 million to $1.2 billion.

The report’s author says the entire mining sector is facing a “confidence crisis” and that junior companies are hardest hit.

“The junior mining sector is not for the faint of heart,” said John Gravelle, global mining leader.

He said the activities of the smaller mining companies – many of them in gold sector – are dependent on the market mood and commodities prices.

When the recovery comes, investors will likely first allocate money to senior producers given their stronger balance sheets and proven production and profit-making capabilities.

“That means many juniors will need to be even more patient with their plans, and have as much cash on hand as possible to wait out the uncertainty,” he said.

But generating cash has been challenging. The amount generated from financing activities fell 34 per cent, on top of a 52 per cent drop in 2012. Net losses among the top 100 companies collectively increased 60 per cent from 2012 to $549.6 million as revenues fell 25 per cent to $871.8 million.

Only three paid a dividend last year — Sierra Metals (TSXV:SMT), Callinan Royalties Corp. (TSXV:CAA), and Midway Gold Corp. (TSXV:MDW), which only paid preferred dividends.

The report said companies have cut expenditures, including stopping exploration work, while others will only survive by merging or accept takeover bids.

But the numbers spell trouble for many of the junior miners, said the report.

“Some may not be around at this time next year,” the report said, noting that the “washout of junior” predicted last year didn’t materialize.

About one-fifth are no longer listed on the Venture Exchange, seven graduated to the TSX, 10 were acquired or merged and one was delisted.

Writedowns surged to $87 million for the year ended June 30, up from $32 million in the prior year.

The top 100 raised $795 million in equity financing, down by half from $1.6 billion in 2012, with only four of 15 producers raising more than $1 million.

The number of initial public offerings has fallen by more than half in the past three years to 24 in 2013, down from 52 in 2011.

About 64 per cent of the junior miners in the top 100 had headquarters in British Columbia, 16 per cent in Ontario, 10 per cent in Quebec and two per cent in Alberta.

Gold was the main commodity for 41 per cent of the companies, while 32 per cent focused on a series of minerals and metals such as diamonds, uranium, platinum and rate earth and zinc. Sliver and copper followed at about 10 per cent. Only four per cent focused on iron ore.

The mining sector is a shrinking part of the TSX Venture Exchange. It represented 35 per cent of its $32 billion market capitalization, down from 51 per cent of $40 billion in 2012 and a 38 per cent drop from 2011. There were no mining companies with a market cap of more than $500 million.