What is the company's official guidance for the net profit growth rate for 2022, 2023, and beyond 
y see approximately 85% of poly and not 80% of wafer, I think are made in China and currently, there is no alternative for U.S. to replace. So, we believe -- I think it is coming to both U.S. market and Chinese market -- for our producers. I think to address the issue ASAP, especially to reach the common. I think area -- that's I mean the carbon neutrality targets. So, I'm not worried about that.
Colin Yang -- Daiwa Securities -- Analyst
Thank you. Thank you, Longgen. So, lastly can I confirm one thing because I think I heard you mentioned bottom line growth of about 20% to 25% year-on-year in the long run. So, is this company's official guidance for like at least at 20% to 25% year-on-year growth of net profit for 2022, 2023 and beyond?
Longgen Zhang -- Chief Executive Officer
Okay. I want to emphasize that we cannot give the future I think forecast. The only thing is I say that because we just assume, let's say, next year the capacity, we can continue 50% expansion. Okay. As far as we finish the 4B, I think run a 40,000 to 50,000 metric tons, we're adding to the existing, I think, the plants. So, I think for next year, I just mentioned that assume the selling price for the first half of this year -- next year is around like a 1.50, second half of next next year is around like a 1.30. We believe the bottom line, definitely, I think that we can achieve 20% to 25% increase. In the future, we can only do is we will make efforts to continue expansion, the annual average, I think a rate our 50% to expansion the capacity, but we cannot guarantee the bottom line, really is because I cannot crystal ball the demand and the supply of polysilicon in the future. Just, I mentioned there, you see we on the supply side have two factors. All right. How much real polysilicon we can supply, how much if the technology shifted, just like you said from P to N, how much we can provide the N-type silicon. From demand side, we really don't know the potential market in the future, the growth. So, basically, I cannot answer your question in the future, but yes, we make efforts.
Colin Yang -- Daiwa Securities -- Analyst
Got it, very clear. Thank you. Longgen. That's all my questions.
Operator
This concludes our question-and-answer session. I'll now turn the conference back over to Kevin He for any closing remarks.
Kevin He -- Investor Relations
Thank you everyone for participating in today's conference call. Should you have any further questions just feel free to send us email or give us a call. Thank you. Bye-bye. Have a nice day.
Operator
[Operator Closing Remarks]
Duration: 66 minutes
Call participants:
Kevin He -- Investor Relations
Longgen Zhang -- Chief Executive Officer
Ming Yang -- Chief Financial Officer
Philip Shen -- Roth Capital Partners -- Analyst
Gary Zhou -- Credit Suisse -- Analyst
Tony Fei -- BOCI -- Analyst
Lu Wei -- Bernstein -- Analyst
Colin Yang -- Daiwa Securities -- Analyst
More DQ analysis
All earnings call transcripts





y see approximately 85% of poly and not 80% of wafer, I think are made in China and currently, there is no alternative for U.S. to replace. So, we believe -- I think it is coming to both U.S. market and Chinese market -- for our producers. I think to address the issue ASAP, especially to reach the common. I think area -- that's I mean the carbon neutrality targets. So, I'm not worried about that.
Colin Yang -- Daiwa Securities -- Analyst
Thank you. Thank you, Longgen. So, lastly can I confirm one thing because I think I heard you mentioned bottom line growth of about 20% to 25% year-on-year in the long run. So, is this company's official guidance for like at least at 20% to 25% year-on-year growth of net profit for 2022, 2023 and beyond?
Longgen Zhang -- Chief Executive Officer
 Okay. I want to emphasize that we cannot give the future I think forecast. The only thing is I say that because we just assume, let's say, next year the capacity, we can continue 50% expansion. Okay. As far as we finish the 4B, I think run a 40,000 to 50,000 metric tons, we're adding to the existing, I think, the plants. So, I think for next year, I just mentioned that assume the selling price for the first half of this year -- next year is around like a 1.50, second half of next next year is around like a 1.30. We believe the bottom line, definitely, I think that we can achieve 20% to 25% increase. In the future, we can only do is we will make efforts to continue expansion, the annual average, I think a rate our 50% to expansion the capacity, but we cannot guarantee the bottom line, really is because I cannot crystal ball the demand and the supply of polysilicon in the future. Just, I mentioned there, you see we on the supply side have two factors. All right. How much real polysilicon we can supply, how much if the technology shifted, just like you said from P to N, how much we can provide the N-type silicon. From demand side, we really don't know the potential market in the future, the growth. So, basically, I cannot answer your question in the future, but yes, we make efforts.
Colin Yang -- Daiwa Securities -- Analyst
Got it, very clear. Thank you. Longgen. That's all my questions.
Operator
This concludes our question-and-answer session. I'll now turn the conference back over to Kevin He for any closing remarks.
Kevin He -- Investor Relations
Thank you everyone for participating in today's conference call. Should you have any further questions just feel free to send us email or give us a call. Thank you. Bye-bye. Have a nice day.
Operator
[Operator Closing Remarks]
Duration: 66 minutes
Call participants:
Kevin He -- Investor Relations
Longgen Zhang -- Chief Executive Officer
Ming Yang -- Chief Financial Officer
Philip Shen -- Roth Capital Partners -- Analyst
Gary Zhou -- Credit Suisse -- Analyst
Tony Fei -- BOCI -- Analyst
Lu Wei -- Bernstein -- Analyst
Colin Yang -- Daiwa Securities -- Analyst
More DQ analysis
All earnings call transcripts




