The 2018 standard = GB/T 1499.2-2018
The 2024 standard = GB 1499.2-2024
As per Mastermines the T in GB/T (2018) = “recommended”, while GB (2024) = to be strictly enforced.
HOW IT MIGHT BE DIFFERENT THIS TIME FOR #Vanadium and possibly #Niobium & #Manganese
Despite CCP claiming they will be going great lengths to crack down on underground steel rebar and non-compliant rebars in 2018, there were still plenty of substandard rebars being used in "tofu" construction even years after. The industry also had a "meh" attitude back in 2018 because they knew there were work-arounds and light punishments if caught non- compliant. Additional details we found about how #China 2024 Rebar Standard might be enforced much harder than the 2018's. Many steel mills that we've talked to have voluntarily chosen an earlier date to commence new standard-compliant steel #rebar. They have also told us some in the industry are starting to produce as early as today. Larger steel mills are typically involved in drafting or have been requested for inputs into the new standard. This meant they would've seen ahead of time on how hard CCP is taking their stance on enforcing the new rebar standard. And being able to experience how China business links to one another, like a spider web, you can be certain that their "friends" have been informed prior to the release of the new standard as well. #SHFE or Shanghai Futures Exchange have also released information regarding the new rebar standard. Starting from 29 July, rebar that is compliant with the 2024 standard can be stored and registered for warehouse receipt. From 19 August onwards, all pre-2018 compliant rebar can no longer register for warehouse receipt in SHFE. On close of business of 24 September, all 2018-compliant rebar warehouse receipts will be canceled. This essentially tells the rebar producers their 2018-compliant steel rebars will not be tradeable on the very day the new standard kicks in. As mentioned in a previous post as well - All non-compliant rebar can only exist in construction sites post 24 September. Many steel mills are currently giving discounts to clear off their 2018-compliant stocks, and we are guessing they're also working really hard to try and export the remaining they can't sell. It's better for them so absorb partial loss, rather than to see those rebars become worthless on 24 September. This is unlike what we've seen in 2018 - that parties are voluntarily pushing compliant date ahead of time and SHFE stepping in to ensure all futures post-enforcement date is compliant with the new standard.
https://twitter.com/Mastermines_CN/status/1818833254457438415