No worries. Yes if one looks at 2018 the rise in vanadium price...

No worries. Yes if one looks at 2018 the rise in vanadium price was to do with the new environmental regulations including steel closures during winter and vanadium slag bans.
 This was also where at the beginning of 2018 there was reasonable levels of vanadium and rebar products in stockpiles and inventories. This is not the case now starting 2019.
So although implemented in November 2018  the effects of the new rebar standards will only be felt this year,, combined with these 2018  factors.
And while  there is a slight downturn in the Chinese economy, it is not expected to effect their construction sector dramatically.
As well because steel is consumed almost entirely domestically incentives such as infrastructure spending is a favoured tool by the Cental  and Regional Chinese  governments to stimulate their economy.