My experience with project developers is that a lot of things can go wrong, and often do. Some potential issues can be easilly identified. Others perhaps not so much. An example of the former was when I was involved in a competition on another site that I no longer use - which involved model portfolios - and I had Gascoyne Resources in my model or virtual portfolio - when they were developing Dalgaranga (a gold mine). I read a post that clearly explained why they would probably not make any money. The person who wrote it was clearly very knowledgable about gold processing plants and the industry and explained that the first problem was the management - I think his argument was that they were geologists and not business-people, and they had no prior experience of taking a discovery through to production, the second issue was the ore type and the assumptions that they were making about their projected costs. He gave an example of another mine that had very similar ore and had run into a lot of trouble and their costs had blown out and they were struggling to produce gold at a profit now. There was also the issue that GCY (Gascoyne's ticker code) had contracted GNG (GR Engineering) to build the plant, yet GNG had not done the PFS (pre-feasibility study) or the DFS/BFS (definitive/bankable feasibility studies). GNG usually do the studies and then win the EPC contract to design and construct the plant, but not in this case. It looked like the studies had been done more-or-less in-house by GCY's management with help from some external experts on various aspects. The crux of that issue is that GNG were building a plant designed by others, and their liability was therefore rather limited. If GNG had designed (engineered) the plant, they would build it, commission it, iron out the bugs, and hand it over in good working order, but that is not necessarily going to be the case when they are building to someone else's plans and design. I took that all into consideration and sold my GCY at a profit before the commissioning of Dalgaranga got underway. The rest, as they say, is history. See here: https://thewest.com.au/business/mining/gascoyne-resources-collapses-just-weeks-after-245m-raising-ng-b881218568z
I also followed a company called Heron Resources (HRR), who are still trading, but they're now sub-6c/share, down from around $1.20/share back in August 2016, and they were over $1.50/share around a decade ago - their 10 year graph is all top left to bottom right, the exact opposite of what you want to see. I held HRR shares for a couple of years, but I became concerned when their EPC contractors - Sedgman - part of CIMIC Group (ASX:CIM) got into a major dispute with them over huge extra costs over and above the fixed price they had previously agreed to. HRR was planning to be an up-and-coming zinc producer, and they had signed a fixed price contract for price certainty, something that is valuable when you are trying to raise money to build a processing plant like they were at Woodlawn, between Canberra and Goulburn. Long story short, they had to raise a LOT of extra capital at a HUGE discount, and all of their shareholders at that time got screwed big time. It looked very likely they would go broke, and they still might, but for now they are still kicking. I'm out now obviously.
One I did manage to ride into the ground was CuDeco (CDU, when they were still listed), which was developing a high-grade copper mine called Rocklands near Cloncurry in Queensland. See here: https://www.abc.net.au/news/2020-05-05/cudeco-goes-into-liquidation-owing-$60-million
They got highjacked by Chinese interests, the original founder got shafted (moved on) and they got driven into the ground and are now being phoenixed by entities associated with those same Chinese interests at a fraction of what they are worth. And ordinary retail shareholders (including me) got zero. 100% loss.
Regarding your question Stuey - "Do they generally stuff up and then get taken over by another group?" Sometimes. It varies. Lots of stuff happens. Generally they just run out of money and that's when the trouble starts. Why they run out of money varies, but it's usually because of something happening that they didn't count on or were not prepared for. I find it useful to study the management of such companies. If the management team have a good track record of bringing mines into production successfully, that's a big plus. Although not always. I did have shares in a company called Carbine Resources, who were going to make a lot of money out of the historic Mount Morgan gold mine in Queensland, mostly from reprocessing old mine tailings (waste) with far newer technology that was supposed to extract the remaining gold for a very low cost. I got interested when a guy called Tony James took over as MD (Managing Director). See here: https://www.abc.net.au/news/2016-04-14/new-management-team-to-oversee-reopening-of-mt-morgan-gold-mine/7325270
Tony had enjoyed quite a bit of success - see here: https://www.businessnews.com.au/Person/Tony-James
A number of companies he had run had been taken over by larger companies at very good premiums and shareholders had done very well. However, that was not to be the case at Carbine. A new report revealed that the reports they had been relying on previously were seriously flawed and their costs were now going to be so high that the project was now not economic - i.e. they wouldn't be able to make any money out of it if they did build it. This happened to coincide with some moves by Patrick Walta and associates. Walta was a director of Carbine at one point and also (along with his associates) controlled the land that Carbine thought they were going to buy as part of their business case (or business plan) - but Walta and his associates changed that deal - the same Patrick Walta who is now the MD of New Century Resources (NCZ) - who are trying to make money out of reprocessing old mine tailings at the old Century zinc mine in Queensland. And struggling big time. Further Reading: https://stockhead.com.au/resources/carbine-bails-mount-morgan-md-chairman-quit/ and https://www.australianmining.com.au/news/new-century-to-hail-us-financial-backer-via-capital-raising/
I could go on with these war stories for days most probably, but most people would find it boring and not too useful. Point is, the things that go wrong and sometimes blow your investment thesis up are often not obvious, and appear to come out of nowhere occasionally.
Regarding: "Useful to know about the substitutes - the uses I was mainly thinking of was in solar/that kind of area. Are there substitutes you know about there? I might need to read up more." No, I didn't have anything specific in mind. I was just making the general point that if the price of silver goes up, and people can use cheaper alternatives (substitutes) for industrial uses, they will. That's all. Something to be aware of. The thing about silver is that it has two distinct drivers - one being industrial uses and the other being a precious metal like gold - a store of wealth some people call it. I think gold is a better option for that. I think silver will increasingly be priced in the future based far more on its industrial uses, and the risk is that if it rises too much in price, people will try hard to find something else with similar qualities that can do the same job at a lower cost. Generally speaking. Nothing specific in mind in terms of a substitute for silver.
Good to hear that you hold NST Stuey - it's the best gold producer we have here in Australia by a country mile. We could be in for some gold price volatility now I think, and that volatility will be magnified in the share price movements of Australia's ASX-listed gold producers, as we saw today - with most of them falling by between 8% and 13% (RMS -13.25%). Newcrest (NCM) outperformed the sector by only falling -4.84% today. I'm not too worried by single day movements. I believe gold is still in a bull run, and we will get sharp mini-corrections within that bull run, however I think the overall trend will remain up for gold for the next few years. The good news is that for those who still haven't managed to add a quality gold producer to their portfolio, there might be some opportunities to pick up some for less in the next little while. NST closed $1.93 cheaper (-11.46%) today (Tues, 10-Nov-2020 - at $14.91) than where they finished up yesterday (at $16.84). That's a significant pull-back - in one day - and they might get even cheaper. I won't be selling however, I might be buying more, but I won't be selling my gold stocks at this point. Not this year. And probably not next year either. But never say never...